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Holographic principle

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790: 404: 728: 3378: 4666: 1844:"Consequently, he ends up with inequalities of the type... Except that one may look at the actual equations of Matrix theory and see that none of these commutators is nonzero... The last displayed inequality above obviously can't be a consequence of quantum gravity because it doesn't depend on G at all! However, in the G→0 limit, one must reproduce non-gravitational physics in the flat Euclidean background spacetime. Hogan's rules don't have the right limit so they can't be right." – 4208: 4218: 450:; it is those light rays that are just barely unable to escape. If neighboring geodesics start moving toward each other they eventually collide, at which point their extension is inside the black hole. So the geodesics are always moving apart, and the number of geodesics which generate the boundary, the area of the horizon, always increases. Hawking's result was called the second law of 641:
that this field makes a logarithmic tent-pole shaped bump on the horizon of a black hole, and like a shadow, the bump is an alternative description of the particle's location and mass. For a four-dimensional spherical uncharged black hole, the deformation of the horizon is similar to the type of deformation which describes the emission and absorption of particles on a string-theory
436:, this prevents falling objects from crossing the event horizon no matter how close they get to it. Since any change in quantum state requires time to flow, all objects and their quantum information state stay imprinted on the event horizon. Bekenstein concluded that from the perspective of any remote observer, the black hole entropy is directly proportional to the area of the 242: 215:
arrangement" of matter and energy. The only salient difference between the thermodynamic entropy of physics and Shannon's entropy of information is in the units of measure; the former is expressed in units of energy divided by temperature, the latter in essentially dimensionless "bits" of information.
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of a particle are the product of all the degrees of freedom of its sub-particles, were a particle to have infinite subdivisions into lower-level particles, the degrees of freedom of the original particle would be infinite, violating the maximal limit of entropy density. The holographic principle thus
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This idea was made more precise by Leonard Susskind, who had also been developing holography, largely independently. Susskind argued that the oscillation of the horizon of a black hole is a complete description of both the infalling and outgoing matter, because the world-sheet theory of string theory
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At first, Hawking did not take the analogy too seriously. He argued that the black hole must have zero temperature, since black holes do not radiate and therefore cannot be in thermal equilibrium with any black body of positive temperature. Then he discovered that black holes do radiate. When heat is
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This work showed that the black hole information paradox is resolved when quantum gravity is described in an unusual string-theoretic way assuming the string-theoretical description is complete, unambiguous and non-redundant. The space-time in quantum gravity would emerge as an effective description
588:, the enumerated ways a system can be configured microscopically while leaving the macroscopic description unchanged. Black hole entropy is deeply puzzling – it says that the logarithm of the number of states of a black hole is proportional to the area of the horizon, not the volume in the interior. 307:
quantum field theories. Much of the usefulness of the duality results from a strong-weak duality: when the fields of the quantum field theory are strongly interacting, the ones in the gravitational theory are weakly interacting and thus more mathematically tractable. This fact has been used to study
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titled "Information in the Holographic Universe", Bekenstein summarizes that "Thermodynamic entropy and Shannon entropy are conceptually equivalent: the number of arrangements that are counted by Boltzmann entropy reflects the amount of Shannon information one would need to implement any particular
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This plot shows the sensitivity of various experiments to fluctuations in space and time. Horizontal axis is the log of apparatus size (or duration time the speed of light), in meters; vertical axis is the log of the rms fluctuation amplitude in the same units. The lower left corner represents the
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would deform the horizon of the black hole, and the deformed horizon could produce different outgoing particles than the undeformed horizon. When a particle falls into a black hole, it is boosted relative to an outside observer, and its gravitational field assumes a universal form. 't Hooft showed
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Given a fixed volume, a black hole whose event horizon encompasses that volume should be the object with the highest amount of entropy. Otherwise, imagine something with a larger entropy, then by throwing more mass into that something, we obtain a black hole with less entropy, violating the second
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Hawking's calculation suggested that the radiation which black holes emit is not related in any way to the matter that they absorb. The outgoing light rays start exactly at the edge of the black hole and spend a long time near the horizon, while the infalling matter only reaches the horizon much
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The illustration demonstrates the way of thinking of the entropic gravity, holographic principle, entropy distribution, and derivation of Einstein General Relativity equations from these considerations. The Einstein equation takes the form of the first law of thermodynamics when Bekenstein and
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described it more precisely in terms of the number of distinct microscopic states that the particles composing a macroscopic "chunk" of matter could be in, while still "looking" like the same macroscopic "chunk". As an example, for the air in a room, its thermodynamic entropy would equal the
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If black holes have a finite entropy, they should also have a finite temperature. In particular, they would come to equilibrium with a thermal gas of photons. This means that black holes would not only absorb photons, but they would also have to emit them in the right amount to maintain
645:. Since the deformations on the surface are the only imprint of the incoming particle, and since these deformations would have to completely determine the outgoing particles, 't Hooft believed that the correct description of the black hole would be by some form of string theory. 649:
was just such a holographic description. While short strings have zero entropy, he could identify long highly excited string states with ordinary black holes. This was a deep advance because it revealed that strings have a classical interpretation in terms of black holes.
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Time-independent solutions to field equations do not emit radiation, because a time-independent background conserves energy. Based on this principle, Hawking set out to show that black holes do not radiate. But, to his surprise, a careful analysis convinced him that
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Planck length or time. In these units, the size of the observable universe is about 26. Various physical systems and experiments are plotted. The "holographic noise" line represents the rms transverse holographic fluctuation amplitude on a given scale.
70:. Susskind said, "The three-dimensional world of ordinary experience—the universe filled with galaxies, stars, planets, houses, boulders, and people—is a hologram, an image of reality coded on a distant two-dimensional surface." As pointed out by 629:. This would mean that quantum mechanics would have to be modified because, in quantum mechanics, states which are superpositions with probability amplitudes never become states which are probabilistic mixtures of different possibilities. 392:, the entropy would disappear. The random properties of the gas would no longer be seen once the black hole had absorbed the gas and settled down. One way of salvaging the second law is if black holes are in fact random objects with an 1010:"Is Our Universe a Hologram? Physicists Debate Famous Idea on Its 25th Anniversary – The Ads/CFT duality conjecture suggests our universe is a hologram, enabling significant discoveries in the 25 years since it was first proposed" 696:. The later authors reinterpreted the same matrix models as a description of the dynamics of point black holes in particular limits. Holography allowed them to conclude that the dynamics of these black holes give a complete 573:, and in just the right way to come to equilibrium with a gas at a finite temperature. Hawking's calculation fixed the constant of proportionality at 1/4; the entropy of a black hole is one quarter its horizon area in 806:
claims that the holographic principle would imply quantum fluctuations in spatial position that would lead to apparent background noise or "holographic noise" measurable at gravitational wave detectors, in particular
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of the theory of oscillations of a lower-dimensional black-hole horizon, and suggest that any black hole with appropriate properties, not just strings, would serve as a basis for a description of string theory.
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bags of gold". The existence of such solutions conflicts with the holographic interpretation, and their effects in a quantum theory of gravity including the holographic principle are not yet fully understood.
750:) about the whereabouts of all the particles which compose matter in that volume. In particular, a given volume has an upper limit of information it can contain, at which it will collapse into a black hole. 534: 1626: 218:
The holographic principle states that the entropy of ordinary mass (not just black holes) is also proportional to surface area and not volume; that volume itself is illusory and the universe is really a
74:, Thorn observed in 1978, that string theory admits a lower-dimensional description in which gravity emerges from it in what would now be called a holographic way. The prime example of holography is the 826:, shows that Craig Hogan's noise is absent down to a scale of 10 meters, as opposed to the scale of 10 meters predicted by Hogan, and the scale of 10 meters found in measurements of the 746:
used in classical physics. Applying this definition to a physical system leads to the conclusion that, for a given energy in a given volume, there is an upper limit to the density of information (the
174:. As an objective measure of the quantity of information, Shannon entropy has been enormously useful, as the design of all modern communications and data storage devices, from cellular phones to 162:
Bekenstein's topical overview "A Tale of Two Entropies" describes potentially profound implications of Wheeler's trend, in part by noting a previously unexpected connection between the world of
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later. The infalling and outgoing mass/energy interact only when they cross. It is implausible that the outgoing state would be completely determined by some tiny residual scattering.
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on the entropy in a region of space, and the bound was proportional to the area of the region. He concluded that the black hole entropy is directly proportional to the area of the
952:, or internal quantum state is not information that is implied to be preserved in the surface fluctuations of the event horizon. (See however "path integral quantization") 117:
that allow values of the entropy larger than those allowed by an area law (radius squared), hence in principle larger than those of a black hole. These are the so-called "
4103: 811:. However these claims have not been widely accepted, or cited, among quantum gravity researchers and appear to be in direct conflict with string theory calculations. 206:
Shannon's efforts to find a way to quantify the information contained in, for example, a telegraph message, led him unexpectedly to a formula with the same form as
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had shown earlier that the total horizon area of a collection of black holes always increases with time. The horizon is a boundary defined by light-like
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in more detail. He noted that when Hawking radiation escapes, there is a way in which incoming particles can modify the outgoing particles. Their
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logarithm of the count of all the ways that the individual gas molecules could be distributed in the room, and all the ways they could be moving.
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is microscopically random, like a hot gas. A known configuration of classical fields has zero entropy: there is nothing random about
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and classical physics. This connection was first described shortly after the seminal 1948 papers of American applied mathematician
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The Bekenstein-Hawking entropy of a black hole is proportional to the surface area of the black hole as expressed in Planck units.
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of a system is the expected value of the system's information content. This definition of entropy is equivalent to the standard
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The duality represents a major advance in understanding of string theory and quantum gravity. This is because it provides a
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is substituted for the thermal energy added to the system, generally by non-integrable random processes, in contrast to d
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is defined as the logarithm of the reciprocal of the probability that a system is in a specific microstate, and the
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This suggests that matter itself cannot be subdivided infinitely many times and there must be an ultimate level of
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causes time, from the perspective of a remote observer, to stop at the event horizon. Due to the natural limit on
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Bekenstein, Jacob D. (January 1981). "Universal upper bound on the entropy-to-energy ratio for bounded systems".
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The physical universe is widely seen to be composed of "matter" and "energy". In his 2003 article published in
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of all the objects that have fallen into the hole might be entirely contained in surface fluctuations of the
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Hawking interpreted this to mean that when black holes absorb some photons in a pure state described by a
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by translating problems in those subjects into more mathematically tractable problems in string theory.
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had rigorously proved in 1986, that the asymptotic symmetry of 2+1 dimensional gravity gives rise to a
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claimed to have found a way to test the holographic principle with a tabletop photon experiment.
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UC Berkeley's Raphael Bousso gives an introductory lecture on the holographic principle – Video.
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The Black Hole War – My Battle with Stephen Hawking to Make the World Safe for Quantum Mechanics
4277: 4062: 3950: 3935: 3794: 3487: 3301: 2993: 2734: 2540: 2431: 2403: 2226: 766: 416:, the entropy in a relativistic gas increases as the energy increases. The only known limit is 278: 236: 189:(the branch of physics dealing with heat), entropy is popularly described as a measure of the " 139: 118: 75: 1659: 4503: 4415: 4302: 3940: 3497: 3352: 2848: 2788: 2696: 2691: 2489: 2479: 2446: 2310: 2187: 2182: 2177: 2162: 2152: 1866: 823: 727: 709: 677: 657: 286: 3143: 1141: 708:
gave the first holographic descriptions of a higher-dimensional object, the 3+1-dimensional
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Physics inside a bounded region is fully captured by physics at the boundary of the region
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within the framework of string theory. However, there exist classical solutions to the
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in late 1997. Important aspects of the correspondence were elaborated in articles by
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memorably penned, 'see a world in a grain of sand', or is that idea no more than '
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except in the case of measurements, which the black hole should not be performing
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introduced today's most widely used measure of information content, now known as
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and because it is the most successful realization of the holographic principle.
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Susskind, Leonard (February 2003). "The Anthropic landscape of string theory".
1371: 977: 770: 705: 685: 661: 626: 592: 433: 366: 362: 320: 186: 167: 151: 71: 3108: 3028: 1972: 1258: 1202: 1098:. International A.D. Sakharov Conference on Physics. Moscow. pp. 447–54. 672:
using a holographic description in terms of charged point black holes, the D0
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Hogan, Craig J. (2008). "Measurement of quantum fluctuations in geometry".
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Majumdar, Parthasarathi (1998). "Black Hole Entropy and Quantum Gravity".
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that increases by an amount greater than the entropy of the consumed gas.
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added to a thermal system, the change in entropy is the increase in
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instrument. Research continued at Fermilab under Hogan as of 2013.
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Troubled by this paradox, Gerard 't Hooft analyzed the emission of
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The most rigorous realization of the holographic principle is the
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to the information "inscribed" on the surface of its boundary.
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and a few additional state variables, such as the pressure.)
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Bousso, Raphael (1999). "A Covariant Entropy Conjecture".
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Bardeen, J. M.; Carter, B.; Hawking, S. W. (1 June 1973).
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implies that the subdivisions must stop at some level.
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Bousso, Raphael (2002). "The holographic principle".
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Bousso, Raphael (2002). "The Holographic Principle".
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Susskind, Leonard (1995). "The World as a Hologram".
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article on holographic principle by Jacob Bekenstein
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Analyses in 2011 of measurements of gamma ray burst
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anti-de Sitter/conformal field theory correspondence
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speculatively summarized a current trend started by
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can be thought of as encoded on a lower-dimensional
2056:from the original on 11 December 2021 – via 1096:Reformulating string theory with the 1/N expansion 528: 1130: 602: 319:The AdS/CFT correspondence was first proposed by 303:It also provides a powerful toolkit for studying 4683: 1341:Advances in Theoretical and Mathematical Physics 42:that states that the description of a volume of 1413:"Top Cited Articles of All Time (2014 edition)" 1036: 1034: 1032: 722: 277:. On the other side of the correspondence are 81:The holographic principle was inspired by the 4248: 3275: 2080: 1863:"Integral challenges physics beyond Einstein" 1715: 377:, they were thought not to have any entropy. 230: 154:'?", referring to the holographic principle. 1987: 1303: 1301: 1029: 1007: 656:In 1995, Susskind, along with collaborators 384:noted that this leads to a violation of the 210:. In an article in the August 2003 issue of 970: 373:. Since black holes are exact solutions of 202:Energy, matter, and information equivalence 4255: 4241: 3841:Magnetospheric eternally collapsing object 3282: 3268: 2087: 2073: 2038: 2012:Introduction to the AdS/CFT correspondence 1436: 1307: 1148:. Little, Brown and Company. p. 410. 1001: 822:space observatory launched in 2002 by the 296:formulation of string theory with certain 1993: 1954: 1779: 1692: 1585: 1548: 1370: 1352: 1334: 1298: 1240: 1184: 1103: 1054: 109:. The holographic principle resolves the 1716:Brown, J. D. & Henneaux, M. (1986). 1682: 1624: 1534: 1217: 1139: 1040: 788: 726: 625:in a thermal mixed state described by a 402: 240: 157: 1850:Hogan's holographic noise doesn't exist 1651: 1482:"The four laws of black hole mechanics" 1405: 1280:Information in the Holographic Universe 1008:Ananthaswamy, Anil (14 February 2023). 976: 4684: 1940: 1722:Communications in Mathematical Physics 1571: 1486:Communications in Mathematical Physics 1227:(2009). "Black Holes, AdS, and CFTs". 1223: 1168: 4236: 3263: 2068: 1909: 1818: 1763: 1685:The Davis Meeting on Cosmic Inflation 1625:Anderson, Rupert W. (31 March 2015). 1330: 1328: 1093: 920:"Complete description" means all the 784: 668:, presented a formulation of the new 346: 125: 93:in any region scales with the radius 89:, which conjectures that the maximum 4217: 2485:Bogomol'nyi–Prasad–Sommerfield bound 2044:"The Holographic Universe Explained" 1658:. New York: Back Bay Books. p.  1094:Thorn, Charles B. (27–31 May 1991). 289:that describe elementary particles. 285:, including theories similar to the 265:(AdS) which are used in theories of 4262: 1821:"Our world may be a giant hologram" 580:The entropy is proportional to the 245:Conjectured relationship of adS/CFT 13: 1628:The Cosmic Compendium: Black Holes 1325: 1229:General Relativity and Gravitation 480: 14: 4718: 4670:Template:Quantum mechanics topics 2094: 2004: 1819:Chown, Marcus (15 January 2009). 4665: 4664: 4386:Topological quantum field theory 4216: 4207: 4206: 3505:Tolman–Oppenheimer–Volkoff limit 3376: 4371:Jackiw–Teitelboim gravity 3622:Innermost stable circular orbit 3289: 2682:Eleven-dimensional supergravity 1910:Cowen, Ron (22 November 2012). 1903: 1881: 1855: 1838: 1812: 1757: 1709: 1676: 1645: 1618: 1565: 1528: 1473: 1430: 1396: 1043:Journal of Mathematical Physics 914: 905: 682:eleven-dimensional supergravity 357:An object with relatively high 4576:Causal dynamical triangulation 4444:Black hole information paradox 4048:Timeline of black hole physics 1574:Journal of High Energy Physics 1335:Maldacena, Juan (March 1998). 1284: 1273: 1162: 1087: 773:. However, J. David Brown and 609:Black hole information paradox 603:Black hole information paradox 597:covariant version of the bound 408:Hawking equations are applied. 111:black hole information paradox 1: 4542:Wheeler–DeWitt equation 3816:Nonsingular black hole models 2130:Second superstring revolution 1604:10.1088/1126-6708/1999/07/004 1402:Klebanov and Maldacena. 2009. 959: 934:size, shape, motion, number, 877:Implicate and explicate order 4464:Cosmic censorship hypothesis 4283:Batalin–Vilkovisky formalism 2624:Generalized complex manifold 2125:First superstring revolution 2000:. 't Hooft's original paper. 882:Quantum speed limit theorems 723:Limit on information density 386:second law of thermodynamics 333:Alexander Markovich Polyakov 21:Holographic Universe (album) 7: 4702:Quantum information science 4038:Rossi X-ray Timing Explorer 4003:Hypercompact stellar system 3993:Gamma-ray burst progenitors 1537:Indian Journal of Physics B 839: 430:Gravitational time dilation 182:, rely on Shannon entropy. 101:, the insight was that the 38:and a supposed property of 23:. For the Epica album, see 10: 4723: 4560:Hartle–Hawking state 4459:Bousso's holographic bound 4439:Black hole complementarity 3724:Black hole complementarity 3691:Bousso's holographic bound 3676:Quasi-periodic oscillation 3374: 3368:Malament–Hogarth spacetime 2222:Non-critical string theory 1798:10.1103/PhysRevD.77.104031 1393:de Haro et al. 2013, p. 2. 1372:10.4310/ATMP.1998.v2.n2.a1 1140:Susskind, Leonard (2008). 857:Bousso's holographic bound 606: 350: 234: 231:The AdS/CFT correspondence 50:to the region – such as a 18: 4656: 4623: 4568: 4552:Euclidean quantum gravity 4550: 4529:Canonical quantum gravity 4527: 4494: 4487: 4479:Gravitational singularity 4449:Black-hole thermodynamics 4429: 4394: 4351: 4333:Ryu–Takayanagi conjecture 4270: 4202: 4076: 3928: 3890: 3869: 3808: 3767: 3716: 3595:Gravitational singularity 3582: 3475: 3385: 3310: 3297: 2766: 2743: 2720: 2667: 2552: 2460: 2402: 2334: 2283: 2250: 2145: 2102: 1973:10.1103/RevModPhys.74.825 1943:Reviews of Modern Physics 1259:10.1007/s10714-008-0749-7 1203:10.1103/RevModPhys.74.825 1172:Reviews of Modern Physics 932:) determined these to be 924:qualities. For example, 452:black hole thermodynamics 353:Black hole thermodynamics 269:, formulated in terms of 87:black hole thermodynamics 25:The Holographic Principle 4606:Superfluid vacuum theory 4361:2+1D topological gravity 4179:PSO J030947.49+271757.31 4104:SDSS J150243.09+111557.3 3637:Blandford–Znajek process 2758:Introduction to M-theory 2452:Wess–Zumino–Witten model 2394:Hanany–Witten transition 2120:History of string theory 1652:Dennett, Daniel (1991). 898: 599:based upon null sheets. 466:divided by temperature: 314:condensed matter physics 279:conformal field theories 178:to hard disk drives and 4596:Noncommutative geometry 4343:Weinberg–Witten theorem 4338:Trans-Planckian problem 3435:Active galactic nucleus 2437:Vertex operator algebra 2137:String theory landscape 1655:Consciousness Explained 1459:10.1103/PhysRevD.23.287 456:law of entropy increase 434:maximum speed of motion 4278:AdS/CFT correspondence 4063:Tidal disruption event 4033:Supermassive dark star 3951:Black holes in fiction 3936:Outline of black holes 3569:Supermassive dark star 3488:Gravitational collapse 2735:AdS/CFT correspondence 2490:Exceptional Lie groups 2432:Superconformal algebra 2404:Conformal field theory 2275:Montonen–Olive duality 2227:Non-linear sigma model 795: 767:AdS/CFT correspondence 732: 678:type IIA string theory 530: 454:, by analogy with the 412:In a sphere of radius 409: 283:quantum field theories 246: 237:AdS/CFT correspondence 140:John Archibald Wheeler 76:AdS/CFT correspondence 4504:Bosonic string theory 4416:Semiclassical gravity 4313:Holographic principle 4303:Gravitational anomaly 3941:Black Hole Initiative 3754:Holographic principle 2730:Holographic principle 2697:Type IIB supergravity 2692:Type IIA supergravity 2544:-form electrodynamics 2163:Bosonic string theory 1867:European Space Agency 824:European Space Agency 792: 755:fundamental particles 730: 531: 406: 263:anti-de Sitter spaces 259:gauge/gravity duality 244: 158:Unexpected connection 56:gravitational horizon 32:holographic principle 4537:Loop quantum gravity 4396:Quantum field theory 3744:Final parsec problem 3703:Schwarzschild radius 2649:Hořava–Witten theory 2596:Hyperkähler manifold 2284:Particles and fields 2232:Tachyon condensation 2217:Matrix string theory 2010:Alfonso V. Ramallo: 1309:Bekenstein, Jacob D. 946:color, aroma, taste 475: 375:Einstein's equations 58:. First proposed by 4692:Theoretical physics 4406:Bunch–Davies vacuum 4398:in curved spacetime 4298:Faddeev–Popov ghost 4043:Superluminal motion 4018:Population III star 3988:Gravitational waves 3946:Black hole starship 3729:Information paradox 2687:Type I supergravity 2591:Calabi–Yau manifold 2586:Ricci-flat manifold 2565:Kaluza–Klein theory 2306:Ramond–Ramond field 2212:String field theory 2032:Scientific American 1965:2002RvMP...74..825B 1790:2008PhRvD..77j4031H 1734:1986CMaPh.104..207B 1703:2003dmci.confE..26S 1596:1999JHEP...07..004B 1559:1999InJPB..73..147M 1498:1973CMaPh..31..161B 1451:1981PhRvD..23..287B 1363:1998AdTMP...2..231M 1318:Scientific American 1251:2009GReGr..41..903M 1195:2002RvMP...74..825B 1114:1994hep.th....5069T 1065:1995JMP....36.6377S 1015:Scientific American 980:(10 October 2022). 740:information entropy 736:Information content 638:gravitational field 621:, they re-emit new 371:gravitational waves 341:high energy physics 298:boundary conditions 287:Yang–Mills theories 253:, sometimes called 212:Scientific American 132:Scientific American 103:information content 4591:Group field theory 4519:Superstring theory 4474:Firewall (physics) 3877:Optical black hole 3790:Reissner–NordstrĂśm 3749:Firewall (physics) 3654:Gravitational lens 2654:K-theory (physics) 2531:ADE classification 2168:Superstring theory 1852:, 7 February 2012. 1742:10.1007/BF01211590 1506:10.1007/BF01645742 987:The New York Times 887:Physical cosmology 852:Beyond black holes 796: 785:Experimental tests 759:degrees of freedom 733: 526: 410: 347:Black hole entropy 247: 164:information theory 126:High-level summary 115:Einstein equations 4679: 4678: 4636:Eternal inflation 4631:Quantum cosmology 4619: 4618: 4411:Hawking radiation 4376:Liouville gravity 4230: 4229: 4023:Supermassive star 4013:Naked singularity 4008:Membrane paradigm 3734:Cosmic censorship 3708:Spaghettification 3696:Immirzi parameter 3649:Hawking radiation 3590:Astrophysical jet 3559:Supermassive star 3549:Binary black hole 3483:Stellar evolution 3425:Intermediate-mass 3257: 3256: 3039:van Nieuwenhuizen 2575:Why 10 dimensions 2480:Chern–Simons form 2447:Kac–Moody algebra 2427:Conformal algebra 2422:Conformal anomaly 2316:Magnetic monopole 2311:Kalb–Ramond field 2153:Nambu–Goto action 2042:(10 April 2019). 1767:Physical Review D 1669:978-0-316-18066-5 1439:Physical Review D 1123:978-1-56072-073-7 1049:(11): 6377–6396. 942:secondary quality 634:Hawking radiation 584:of the number of 521: 506: 255:Maldacena duality 34:is a property of 4714: 4668: 4667: 4492: 4491: 4454:Bekenstein bound 4271:Central concepts 4257: 4250: 4243: 4234: 4233: 4220: 4219: 4210: 4209: 3882:Sonic black hole 3831:Dark-energy star 3686:Bekenstein bound 3671:M–sigma relation 3600:Ring singularity 3380: 3284: 3277: 3270: 3261: 3260: 2767:String theorists 2707:Lie superalgebra 2659:Twisted K-theory 2617:Spin(7)-manifold 2570:Compactification 2412:Virasoro algebra 2195:Heterotic string 2089: 2082: 2075: 2066: 2065: 2061: 1999: 1997: 1984: 1958: 1929: 1928: 1926: 1924: 1907: 1901: 1900: 1898: 1896: 1885: 1879: 1878: 1876: 1874: 1859: 1853: 1842: 1836: 1835: 1833: 1831: 1816: 1810: 1809: 1783: 1761: 1755: 1753: 1713: 1707: 1706: 1696: 1680: 1674: 1673: 1649: 1643: 1642: 1622: 1616: 1615: 1589: 1569: 1563: 1562: 1552: 1532: 1526: 1525: 1477: 1471: 1470: 1445:(215): 287–298. 1434: 1428: 1427: 1425: 1423: 1409: 1403: 1400: 1394: 1391: 1385: 1384: 1374: 1356: 1332: 1323: 1322: 1305: 1296: 1295: 1288: 1282: 1277: 1271: 1270: 1244: 1221: 1215: 1214: 1188: 1166: 1160: 1159: 1147: 1137: 1128: 1127: 1107: 1091: 1085: 1084: 1073:10.1063/1.531249 1058: 1038: 1027: 1026: 1024: 1022: 1005: 999: 998: 996: 994: 974: 953: 928:(and before him 918: 912: 909: 872:Entropic gravity 847:Bekenstein bound 834:Jacob Bekenstein 779:Virasoro algebra 748:Bekenstein bound 698:non-perturbative 563:detailed balance 535: 533: 532: 527: 522: 517: 516: 515: 504: 500: 499: 492: 484: 483: 382:Jacob Bekenstein 308:many aspects of 305:strongly coupled 294:non-perturbative 281:(CFT) which are 257:(after ref.) or 195:Ludwig Boltzmann 136:Jacob Bekenstein 83:Bekenstein bound 64:Leonard Susskind 54:boundary like a 4722: 4721: 4717: 4716: 4715: 4713: 4712: 4711: 4682: 4681: 4680: 4675: 4674: 4652: 4641:FRW/CFT duality 4615: 4564: 4546: 4523: 4483: 4425: 4397: 4390: 4347: 4266: 4264:Quantum gravity 4261: 4231: 4226: 4198: 4174:ULAS J1342+0928 4134:SDSS J0849+1114 4119:Phoenix Cluster 4072: 3924: 3886: 3865: 3804: 3763: 3759:No-hair theorem 3712: 3666:Bondi accretion 3632:Penrose process 3578: 3544:Gamma-ray burst 3471: 3381: 3372: 3358:Direct collapse 3306: 3293: 3288: 3258: 3253: 2762: 2739: 2716: 2663: 2611: 2581:Kähler manifold 2548: 2525: 2518: 2511: 2504: 2497: 2456: 2417:Mirror symmetry 2398: 2384:Brane cosmology 2330: 2279: 2246: 2202:N=2 superstring 2188:Type IIB string 2183:Type IIA string 2158:Polyakov action 2141: 2098: 2093: 2007: 1932: 1922: 1920: 1908: 1904: 1894: 1892: 1887: 1886: 1882: 1872: 1870: 1861: 1860: 1856: 1843: 1839: 1829: 1827: 1817: 1813: 1762: 1758: 1714: 1710: 1681: 1677: 1670: 1650: 1646: 1639: 1623: 1619: 1570: 1566: 1533: 1529: 1478: 1474: 1435: 1431: 1421: 1419: 1411: 1410: 1406: 1401: 1397: 1392: 1388: 1333: 1326: 1311:(August 2003). 1306: 1299: 1290: 1289: 1285: 1278: 1274: 1222: 1218: 1167: 1163: 1156: 1138: 1131: 1124: 1092: 1088: 1039: 1030: 1020: 1018: 1006: 1002: 992: 990: 978:Overbye, Dennis 975: 971: 962: 957: 956: 944:information as 919: 915: 910: 906: 901: 896: 867:Digital physics 862:Brane cosmology 842: 818:in 2004 by the 787: 725: 700:formulation of 694:Hermann Nicolai 666:Stephen Shenker 611: 605: 595:came up with a 541:(Here the term 511: 507: 495: 494: 493: 491: 479: 478: 476: 473: 472: 444:Stephen Hawking 367:magnetic fields 355: 349: 267:quantum gravity 239: 233: 204: 172:Shannon entropy 160: 128: 60:Gerard 't Hooft 40:quantum gravity 36:string theories 28: 17: 12: 11: 5: 4720: 4710: 4709: 4704: 4699: 4694: 4677: 4676: 4673: 4672: 4658: 4657: 4654: 4653: 4651: 4650: 4649: 4648: 4643: 4638: 4627: 4625: 4621: 4620: 4617: 4616: 4614: 4613: 4611:Twistor theory 4608: 4603: 4598: 4593: 4588: 4583: 4578: 4572: 4570: 4566: 4565: 4563: 4562: 4556: 4554: 4548: 4547: 4545: 4544: 4539: 4533: 4531: 4525: 4524: 4522: 4521: 4516: 4511: 4506: 4500: 4498: 4489: 4485: 4484: 4482: 4481: 4476: 4471: 4466: 4461: 4456: 4451: 4446: 4441: 4435: 4433: 4427: 4426: 4424: 4423: 4418: 4413: 4408: 4402: 4400: 4392: 4391: 4389: 4388: 4383: 4378: 4373: 4368: 4363: 4357: 4355: 4349: 4348: 4346: 4345: 4340: 4335: 4330: 4325: 4320: 4315: 4310: 4305: 4300: 4295: 4290: 4285: 4280: 4274: 4272: 4268: 4267: 4260: 4259: 4252: 4245: 4237: 4228: 4227: 4225: 4224: 4214: 4203: 4200: 4199: 4197: 4196: 4194:Swift J1644+57 4191: 4186: 4181: 4176: 4171: 4166: 4161: 4156: 4151: 4146: 4144:MS 0735.6+7421 4141: 4136: 4131: 4126: 4121: 4116: 4111: 4109:Sagittarius A* 4106: 4101: 4096: 4091: 4086: 4080: 4078: 4074: 4073: 4071: 4070: 4065: 4060: 4055: 4050: 4045: 4040: 4035: 4030: 4025: 4020: 4015: 4010: 4005: 4000: 3995: 3990: 3985: 3984: 3983: 3978: 3968: 3963: 3958: 3953: 3948: 3943: 3938: 3932: 3930: 3926: 3925: 3923: 3922: 3917: 3912: 3907: 3902: 3896: 3894: 3888: 3887: 3885: 3884: 3879: 3873: 3871: 3867: 3866: 3864: 3863: 3858: 3853: 3848: 3843: 3838: 3833: 3828: 3823: 3818: 3812: 3810: 3806: 3805: 3803: 3802: 3797: 3792: 3787: 3782: 3771: 3769: 3765: 3764: 3762: 3761: 3756: 3751: 3746: 3741: 3736: 3731: 3726: 3720: 3718: 3714: 3713: 3711: 3710: 3705: 3700: 3699: 3698: 3688: 3683: 3681:Thermodynamics 3678: 3673: 3668: 3663: 3662: 3661: 3651: 3646: 3644:Accretion disk 3641: 3640: 3639: 3634: 3624: 3619: 3614: 3609: 3608: 3607: 3602: 3592: 3586: 3584: 3580: 3579: 3577: 3576: 3571: 3566: 3561: 3556: 3551: 3546: 3541: 3540: 3539: 3534: 3529: 3519: 3518: 3517: 3507: 3502: 3501: 3500: 3490: 3485: 3479: 3477: 3473: 3472: 3470: 3469: 3468: 3467: 3462: 3457: 3452: 3447: 3442: 3437: 3427: 3422: 3421: 3420: 3410: 3409: 3408: 3405: 3400: 3389: 3387: 3383: 3382: 3375: 3373: 3371: 3370: 3365: 3360: 3355: 3350: 3345: 3340: 3335: 3330: 3325: 3320: 3318:BTZ black hole 3314: 3312: 3308: 3307: 3305: 3304: 3298: 3295: 3294: 3287: 3286: 3279: 3272: 3264: 3255: 3254: 3252: 3251: 3246: 3241: 3236: 3231: 3226: 3221: 3216: 3211: 3206: 3201: 3196: 3191: 3186: 3181: 3176: 3171: 3166: 3161: 3156: 3151: 3146: 3141: 3136: 3131: 3126: 3121: 3116: 3111: 3106: 3101: 3096: 3091: 3089:Randjbar-Daemi 3086: 3081: 3076: 3071: 3066: 3061: 3056: 3051: 3046: 3041: 3036: 3031: 3026: 3021: 3016: 3011: 3006: 3001: 2996: 2991: 2986: 2981: 2976: 2971: 2966: 2961: 2956: 2951: 2946: 2941: 2936: 2931: 2926: 2921: 2916: 2911: 2906: 2901: 2896: 2891: 2886: 2881: 2876: 2871: 2866: 2861: 2856: 2851: 2846: 2841: 2836: 2831: 2826: 2821: 2816: 2811: 2806: 2801: 2796: 2791: 2786: 2781: 2776: 2770: 2768: 2764: 2763: 2761: 2760: 2755: 2749: 2747: 2741: 2740: 2738: 2737: 2732: 2726: 2724: 2718: 2717: 2715: 2714: 2712:Lie supergroup 2709: 2704: 2699: 2694: 2689: 2684: 2679: 2673: 2671: 2665: 2664: 2662: 2661: 2656: 2651: 2646: 2641: 2636: 2631: 2626: 2621: 2620: 2619: 2614: 2609: 2605: 2604: 2603: 2593: 2583: 2578: 2572: 2567: 2562: 2556: 2554: 2550: 2549: 2547: 2546: 2538: 2533: 2528: 2523: 2516: 2509: 2502: 2495: 2487: 2482: 2477: 2472: 2466: 2464: 2458: 2457: 2455: 2454: 2449: 2444: 2439: 2434: 2429: 2424: 2419: 2414: 2408: 2406: 2400: 2399: 2397: 2396: 2391: 2389:Quiver diagram 2386: 2381: 2376: 2371: 2366: 2361: 2356: 2351: 2346: 2340: 2338: 2332: 2331: 2329: 2328: 2323: 2318: 2313: 2308: 2303: 2298: 2293: 2287: 2285: 2281: 2280: 2278: 2277: 2272: 2267: 2262: 2256: 2254: 2252:String duality 2248: 2247: 2245: 2244: 2239: 2234: 2229: 2224: 2219: 2214: 2209: 2204: 2199: 2198: 2197: 2192: 2191: 2190: 2185: 2178:Type II string 2175: 2165: 2160: 2155: 2149: 2147: 2143: 2142: 2140: 2139: 2134: 2133: 2132: 2127: 2117: 2115:Cosmic strings 2112: 2106: 2104: 2100: 2099: 2092: 2091: 2084: 2077: 2069: 2063: 2062: 2049:PBS Space Time 2036: 2028: 2023: 2006: 2005:External links 2003: 2002: 2001: 1985: 1956:hep-th/0203101 1949:(3): 825–874. 1937: 1936: 1931: 1930: 1902: 1880: 1869:. 30 June 2011 1854: 1837: 1811: 1774:(10): 104031. 1756: 1728:(2): 207–226. 1708: 1694:hep-th/0302219 1675: 1668: 1644: 1637: 1617: 1587:hep-th/9905177 1564: 1527: 1492:(2): 161–170. 1472: 1429: 1404: 1395: 1386: 1354:hep-th/9711200 1347:(2): 231–252. 1324: 1297: 1283: 1272: 1225:Marolf, Donald 1216: 1186:hep-th/0203101 1179:(3): 825–874. 1161: 1154: 1129: 1122: 1105:hep-th/9405069 1086: 1056:hep-th/9409089 1028: 1000: 968: 967: 966: 961: 958: 955: 954: 913: 903: 902: 900: 897: 895: 894: 889: 884: 879: 874: 869: 864: 859: 854: 849: 843: 841: 838: 786: 783: 771:Juan Maldacena 724: 721: 706:Juan Maldacena 686:Bernard de Wit 662:Willy Fischler 627:density matrix 607:Main article: 604: 601: 593:Raphael Bousso 539: 538: 537: 536: 525: 520: 514: 510: 503: 498: 490: 487: 482: 351:Main article: 348: 345: 321:Juan Maldacena 235:Main article: 232: 229: 203: 200: 187:thermodynamics 168:Claude Shannon 159: 156: 152:poetic license 127: 124: 96: 72:Raphael Bousso 15: 9: 6: 4: 3: 2: 4719: 4708: 4705: 4703: 4700: 4698: 4695: 4693: 4690: 4689: 4687: 4671: 4663: 4660: 4659: 4655: 4647: 4644: 4642: 4639: 4637: 4634: 4633: 4632: 4629: 4628: 4626: 4622: 4612: 4609: 4607: 4604: 4602: 4599: 4597: 4594: 4592: 4589: 4587: 4586:Dual graviton 4584: 4582: 4579: 4577: 4574: 4573: 4571: 4567: 4561: 4558: 4557: 4555: 4553: 4549: 4543: 4540: 4538: 4535: 4534: 4532: 4530: 4526: 4520: 4517: 4515: 4512: 4510: 4507: 4505: 4502: 4501: 4499: 4497: 4496:String theory 4493: 4490: 4486: 4480: 4477: 4475: 4472: 4470: 4467: 4465: 4462: 4460: 4457: 4455: 4452: 4450: 4447: 4445: 4442: 4440: 4437: 4436: 4434: 4432: 4428: 4422: 4419: 4417: 4414: 4412: 4409: 4407: 4404: 4403: 4401: 4399: 4393: 4387: 4384: 4382: 4379: 4377: 4374: 4372: 4369: 4367: 4364: 4362: 4359: 4358: 4356: 4354: 4350: 4344: 4341: 4339: 4336: 4334: 4331: 4329: 4326: 4324: 4321: 4319: 4316: 4314: 4311: 4309: 4306: 4304: 4301: 4299: 4296: 4294: 4291: 4289: 4286: 4284: 4281: 4279: 4276: 4275: 4273: 4269: 4265: 4258: 4253: 4251: 4246: 4244: 4239: 4238: 4235: 4223: 4215: 4213: 4205: 4204: 4201: 4195: 4192: 4190: 4187: 4185: 4182: 4180: 4177: 4175: 4172: 4170: 4169:Markarian 501 4167: 4165: 4162: 4160: 4157: 4155: 4152: 4150: 4147: 4145: 4142: 4140: 4137: 4135: 4132: 4130: 4127: 4125: 4122: 4120: 4117: 4115: 4112: 4110: 4107: 4105: 4102: 4100: 4097: 4095: 4094:XTE J1118+480 4092: 4090: 4089:XTE J1650-500 4087: 4085: 4082: 4081: 4079: 4075: 4069: 4066: 4064: 4061: 4059: 4056: 4054: 4051: 4049: 4046: 4044: 4041: 4039: 4036: 4034: 4031: 4029: 4026: 4024: 4021: 4019: 4016: 4014: 4011: 4009: 4006: 4004: 4001: 3999: 3996: 3994: 3991: 3989: 3986: 3982: 3979: 3977: 3974: 3973: 3972: 3969: 3967: 3964: 3962: 3959: 3957: 3954: 3952: 3949: 3947: 3944: 3942: 3939: 3937: 3934: 3933: 3931: 3927: 3921: 3918: 3916: 3913: 3911: 3908: 3906: 3903: 3901: 3898: 3897: 3895: 3893: 3889: 3883: 3880: 3878: 3875: 3874: 3872: 3868: 3862: 3859: 3857: 3854: 3852: 3849: 3847: 3844: 3842: 3839: 3837: 3834: 3832: 3829: 3827: 3824: 3822: 3819: 3817: 3814: 3813: 3811: 3807: 3801: 3798: 3796: 3793: 3791: 3788: 3786: 3783: 3780: 3776: 3775:Schwarzschild 3773: 3772: 3770: 3766: 3760: 3757: 3755: 3752: 3750: 3747: 3745: 3742: 3740: 3737: 3735: 3732: 3730: 3727: 3725: 3722: 3721: 3719: 3715: 3709: 3706: 3704: 3701: 3697: 3694: 3693: 3692: 3689: 3687: 3684: 3682: 3679: 3677: 3674: 3672: 3669: 3667: 3664: 3660: 3657: 3656: 3655: 3652: 3650: 3647: 3645: 3642: 3638: 3635: 3633: 3630: 3629: 3628: 3625: 3623: 3620: 3618: 3617:Photon sphere 3615: 3613: 3612:Event horizon 3610: 3606: 3603: 3601: 3598: 3597: 3596: 3593: 3591: 3588: 3587: 3585: 3581: 3575: 3572: 3570: 3567: 3565: 3562: 3560: 3557: 3555: 3552: 3550: 3547: 3545: 3542: 3538: 3537:Related links 3535: 3533: 3530: 3528: 3525: 3524: 3523: 3520: 3516: 3515:Related links 3513: 3512: 3511: 3508: 3506: 3503: 3499: 3498:Related links 3496: 3495: 3494: 3491: 3489: 3486: 3484: 3481: 3480: 3478: 3474: 3466: 3463: 3461: 3458: 3456: 3453: 3451: 3448: 3446: 3443: 3441: 3438: 3436: 3433: 3432: 3431: 3428: 3426: 3423: 3419: 3416: 3415: 3414: 3411: 3406: 3404: 3401: 3399: 3396: 3395: 3394: 3391: 3390: 3388: 3384: 3379: 3369: 3366: 3364: 3361: 3359: 3356: 3354: 3351: 3349: 3346: 3344: 3341: 3339: 3336: 3334: 3331: 3329: 3326: 3324: 3323:Schwarzschild 3321: 3319: 3316: 3315: 3313: 3309: 3303: 3300: 3299: 3296: 3292: 3285: 3280: 3278: 3273: 3271: 3266: 3265: 3262: 3250: 3247: 3245: 3242: 3240: 3237: 3235: 3234:Zamolodchikov 3232: 3230: 3229:Zamolodchikov 3227: 3225: 3222: 3220: 3217: 3215: 3212: 3210: 3207: 3205: 3202: 3200: 3197: 3195: 3192: 3190: 3187: 3185: 3182: 3180: 3177: 3175: 3172: 3170: 3167: 3165: 3162: 3160: 3157: 3155: 3152: 3150: 3147: 3145: 3142: 3140: 3137: 3135: 3132: 3130: 3127: 3125: 3122: 3120: 3117: 3115: 3112: 3110: 3107: 3105: 3102: 3100: 3097: 3095: 3092: 3090: 3087: 3085: 3082: 3080: 3077: 3075: 3072: 3070: 3067: 3065: 3062: 3060: 3057: 3055: 3052: 3050: 3047: 3045: 3042: 3040: 3037: 3035: 3032: 3030: 3027: 3025: 3022: 3020: 3017: 3015: 3012: 3010: 3007: 3005: 3002: 3000: 2997: 2995: 2992: 2990: 2987: 2985: 2982: 2980: 2977: 2975: 2972: 2970: 2967: 2965: 2962: 2960: 2957: 2955: 2952: 2950: 2947: 2945: 2942: 2940: 2937: 2935: 2932: 2930: 2927: 2925: 2922: 2920: 2917: 2915: 2912: 2910: 2907: 2905: 2902: 2900: 2897: 2895: 2892: 2890: 2887: 2885: 2882: 2880: 2877: 2875: 2872: 2870: 2867: 2865: 2862: 2860: 2857: 2855: 2852: 2850: 2847: 2845: 2842: 2840: 2837: 2835: 2832: 2830: 2827: 2825: 2822: 2820: 2817: 2815: 2812: 2810: 2807: 2805: 2802: 2800: 2797: 2795: 2792: 2790: 2787: 2785: 2782: 2780: 2777: 2775: 2772: 2771: 2769: 2765: 2759: 2756: 2754: 2753:Matrix theory 2751: 2750: 2748: 2746: 2742: 2736: 2733: 2731: 2728: 2727: 2725: 2723: 2719: 2713: 2710: 2708: 2705: 2703: 2700: 2698: 2695: 2693: 2690: 2688: 2685: 2683: 2680: 2678: 2675: 2674: 2672: 2670: 2669:Supersymmetry 2666: 2660: 2657: 2655: 2652: 2650: 2647: 2645: 2642: 2640: 2637: 2635: 2632: 2630: 2627: 2625: 2622: 2618: 2615: 2613: 2606: 2602: 2599: 2598: 2597: 2594: 2592: 2589: 2588: 2587: 2584: 2582: 2579: 2576: 2573: 2571: 2568: 2566: 2563: 2561: 2558: 2557: 2555: 2551: 2545: 2543: 2539: 2537: 2534: 2532: 2529: 2526: 2519: 2512: 2505: 2498: 2491: 2488: 2486: 2483: 2481: 2478: 2476: 2473: 2471: 2468: 2467: 2465: 2463: 2459: 2453: 2450: 2448: 2445: 2443: 2440: 2438: 2435: 2433: 2430: 2428: 2425: 2423: 2420: 2418: 2415: 2413: 2410: 2409: 2407: 2405: 2401: 2395: 2392: 2390: 2387: 2385: 2382: 2380: 2377: 2375: 2372: 2370: 2367: 2365: 2362: 2360: 2357: 2355: 2352: 2350: 2347: 2345: 2342: 2341: 2339: 2337: 2333: 2327: 2324: 2322: 2321:Dual graviton 2319: 2317: 2314: 2312: 2309: 2307: 2304: 2302: 2299: 2297: 2294: 2292: 2289: 2288: 2286: 2282: 2276: 2273: 2271: 2268: 2266: 2263: 2261: 2258: 2257: 2255: 2253: 2249: 2243: 2240: 2238: 2237:RNS formalism 2235: 2233: 2230: 2228: 2225: 2223: 2220: 2218: 2215: 2213: 2210: 2208: 2205: 2203: 2200: 2196: 2193: 2189: 2186: 2184: 2181: 2180: 2179: 2176: 2174: 2173:Type I string 2171: 2170: 2169: 2166: 2164: 2161: 2159: 2156: 2154: 2151: 2150: 2148: 2144: 2138: 2135: 2131: 2128: 2126: 2123: 2122: 2121: 2118: 2116: 2113: 2111: 2108: 2107: 2105: 2101: 2097: 2096:String theory 2090: 2085: 2083: 2078: 2076: 2071: 2070: 2067: 2059: 2055: 2051: 2050: 2045: 2041: 2037: 2035: 2033: 2029: 2027: 2024: 2021: 2017: 2013: 2009: 2008: 1996: 1995:gr-qc/9310026 1991: 1986: 1982: 1978: 1974: 1970: 1966: 1962: 1957: 1952: 1948: 1944: 1939: 1938: 1934: 1933: 1919: 1918: 1913: 1906: 1891:. 6 July 2013 1890: 1884: 1868: 1864: 1858: 1851: 1847: 1841: 1826: 1822: 1815: 1807: 1803: 1799: 1795: 1791: 1787: 1782: 1777: 1773: 1769: 1768: 1760: 1751: 1747: 1743: 1739: 1735: 1731: 1727: 1723: 1719: 1712: 1704: 1700: 1695: 1690: 1686: 1679: 1671: 1665: 1661: 1657: 1656: 1648: 1640: 1638:9781329024588 1634: 1630: 1629: 1621: 1613: 1609: 1605: 1601: 1597: 1593: 1588: 1583: 1579: 1575: 1568: 1560: 1556: 1551: 1550:gr-qc/9807045 1546: 1542: 1538: 1531: 1523: 1519: 1515: 1511: 1507: 1503: 1499: 1495: 1491: 1487: 1483: 1476: 1468: 1464: 1460: 1456: 1452: 1448: 1444: 1440: 1433: 1418: 1414: 1408: 1399: 1390: 1382: 1378: 1373: 1368: 1364: 1360: 1355: 1350: 1346: 1342: 1338: 1331: 1329: 1321:. p. 59. 1320: 1319: 1314: 1310: 1304: 1302: 1293: 1287: 1281: 1276: 1268: 1264: 1260: 1256: 1252: 1248: 1243: 1238: 1235:(4): 903–17. 1234: 1230: 1226: 1220: 1212: 1208: 1204: 1200: 1196: 1192: 1187: 1182: 1178: 1174: 1173: 1165: 1157: 1155:9780316016407 1151: 1146: 1145: 1136: 1134: 1125: 1119: 1115: 1111: 1106: 1101: 1097: 1090: 1082: 1078: 1074: 1070: 1066: 1062: 1057: 1052: 1048: 1044: 1037: 1035: 1033: 1017: 1016: 1011: 1004: 989: 988: 983: 979: 973: 969: 964: 963: 951: 947: 943: 939: 935: 931: 927: 923: 917: 908: 904: 893: 890: 888: 885: 883: 880: 878: 875: 873: 870: 868: 865: 863: 860: 858: 855: 853: 850: 848: 845: 844: 837: 835: 831: 829: 825: 821: 817: 812: 810: 805: 801: 791: 782: 780: 776: 775:Marc Henneaux 772: 768: 763: 760: 756: 751: 749: 745: 744:Gibbs entropy 741: 737: 729: 720: 718: 714: 711: 707: 703: 699: 695: 691: 687: 683: 679: 675: 671: 667: 663: 659: 654: 650: 646: 644: 639: 635: 630: 628: 624: 620: 619:wave function 615: 610: 600: 598: 594: 589: 587: 583: 578: 576: 572: 566: 564: 558: 556: 552: 548: 544: 523: 518: 512: 508: 501: 496: 488: 485: 471: 470: 469: 468: 467: 465: 459: 457: 453: 449: 445: 441: 439: 438:event horizon 435: 431: 427: 426:event horizon 423: 419: 418:gravitational 415: 405: 401: 397: 395: 391: 390:event horizon 387: 383: 378: 376: 372: 368: 364: 360: 354: 344: 342: 338: 337:Edward Witten 334: 330: 329:Igor Klebanov 326: 325:Steven Gubser 322: 317: 315: 311: 306: 301: 299: 295: 290: 288: 284: 280: 276: 272: 271:string theory 268: 264: 260: 256: 252: 243: 238: 228: 226: 222: 216: 213: 209: 199: 196: 192: 188: 183: 181: 177: 173: 169: 165: 155: 153: 149: 148:William Blake 145: 141: 137: 133: 123: 120: 116: 112: 108: 107:event horizon 104: 100: 94: 92: 88: 84: 79: 77: 73: 69: 68:Charles Thorn 65: 61: 57: 53: 49: 45: 41: 37: 33: 26: 22: 4661: 4624:Applications 4514:Supergravity 4421:Unruh effect 4328:Quantum foam 4323:Planck units 4318:IR/UV mixing 4312: 4293:Causal patch 4124:PKS 1302-102 3998:Gravity well 3966:Compact star 3920:Microquasars 3905:Most massive 3809:Alternatives 3753: 3574:X-ray binary 3493:Neutron star 3430:Supermassive 3407:Hawking star 3348:Supermassive 2779:Arkani-Hamed 2729: 2677:Supergravity 2644:Moduli space 2541: 2536:Dirac string 2462:Gauge theory 2442:Loop algebra 2379:Black string 2242:GS formalism 2047: 2040:O'Dowd, Matt 2031: 2011: 1946: 1942: 1921:. Retrieved 1915: 1905: 1893:. Retrieved 1883: 1871:. Retrieved 1857: 1840: 1828:. Retrieved 1825:NewScientist 1824: 1814: 1771: 1765: 1759: 1725: 1721: 1711: 1684: 1678: 1654: 1647: 1631:. Lulu.com. 1627: 1620: 1577: 1573: 1567: 1540: 1536: 1530: 1489: 1485: 1475: 1442: 1438: 1432: 1420:. Retrieved 1407: 1398: 1389: 1344: 1340: 1316: 1286: 1275: 1232: 1228: 1219: 1176: 1170: 1164: 1143: 1095: 1089: 1046: 1042: 1019:. Retrieved 1013: 1003: 991:. Retrieved 985: 972: 949: 945: 941: 937: 933: 930:Robert Boyle 921: 916: 907: 892:Quantum foam 832: 813: 797: 764: 752: 734: 717:gauge theory 655: 651: 647: 631: 616: 612: 590: 579: 575:Planck units 567: 559: 554: 553:temperature 546: 542: 540: 460: 442: 413: 411: 398: 379: 356: 318: 302: 291: 258: 254: 250: 248: 217: 211: 205: 184: 161: 129: 80: 31: 29: 4697:Black holes 4581:Causal sets 4431:Black holes 4114:Centaurus A 4068:Planet Nine 3971:Exotic star 3900:Black holes 3846:Planck star 3795:Kerr–Newman 3510:White dwarf 3460:Radio-Quiet 3418:Microquasar 3291:Black holes 3139:Silverstein 2639:Orientifold 2374:Black holes 2369:Black brane 2326:Dual photon 1895:14 February 1422:26 December 1417:INSPIRE-HEP 1021:15 February 816:GRB 041219A 804:Craig Hogan 704:. In 1997, 643:world sheet 586:microstates 464:mass–energy 422:upper bound 208:Boltzmann's 144:information 4707:Holography 4686:Categories 4646:Multiverse 4488:Approaches 4366:CGHS model 4353:Toy models 4288:CA-duality 4164:Q0906+6930 4154:Hercules A 4084:Cygnus X-1 4053:White hole 4028:Quasi-star 3981:Preon star 3976:Quark star 3961:Big Bounce 3821:Black star 3779:Derivation 3627:Ergosphere 3583:Properties 3564:Quasi-star 3554:Quark star 3465:Radio-Loud 3353:Primordial 3343:Kugelblitz 3159:Strominger 3154:Steinhardt 3149:Staudacher 3064:Polchinski 3014:Nanopoulos 2974:Mandelstam 2954:Kontsevich 2794:Berenstein 2722:Holography 2702:Superspace 2601:K3 surface 2560:Worldsheet 2475:Instantons 2103:Background 1923:3 February 1873:3 February 1846:LuboĹĄ Motl 1580:(7): 004. 1543:(2): 147. 993:10 October 960:References 926:John Locke 802:physicist 690:Jens Hoppe 225:isomorphic 134:magazine, 99:black hole 52:light-like 4662:See also: 4601:Spin foam 4381:RST model 4189:AT2018hyz 3836:Gravastar 3826:Dark star 3659:Microlens 3532:Hypernova 3527:Micronova 3522:Supernova 3476:Formation 3194:Veneziano 3074:Rajaraman 2969:Maldacena 2859:Gopakumar 2809:Dijkgraaf 2804:Curtright 2470:Anomalies 2349:NS5-brane 2270:U-duality 2265:S-duality 2260:T-duality 2020:1310.4319 1806:119087922 1781:0712.3419 1514:1432-0916 1467:120643289 1381:1095-0753 1242:0810.4886 965:Citations 757:. As the 658:Tom Banks 582:logarithm 543:δM c 497:δ 448:geodesics 335:, and by 223:which is 119:Wheeler's 4509:M-theory 4469:ER = EPR 4308:Graviton 4212:Category 4099:A0620-00 4058:Wormhole 3956:Big Bang 3856:Fuzzball 3739:ER = EPR 3605:Theorems 3403:Electron 3398:Extremal 3328:Rotating 3249:Zwiebach 3204:Verlinde 3199:Verlinde 3174:Townsend 3169:Susskind 3104:Sagnotti 3069:Polyakov 3024:Nekrasov 2989:Minwalla 2984:Martinec 2949:Knizhnik 2944:Klebanov 2939:Kapustin 2904:'t Hooft 2839:Fischler 2774:Aganagić 2745:M-theory 2634:Conifold 2629:Orbifold 2612:manifold 2553:Geometry 2359:M5-brane 2354:M2-brane 2291:Graviton 2207:F-theory 2054:Archived 1981:55096624 1830:19 April 1750:55421933 1522:54690354 1267:55210840 1211:55096624 1081:17316840 938:solidity 840:See also 820:INTEGRAL 800:Fermilab 713:membrane 710:type IIB 702:M-theory 670:M-theory 363:electric 275:M-theory 221:hologram 191:disorder 48:boundary 4222:Commons 4184:P172+18 4139:TON 618 4077:Notable 3929:Related 3915:Quasars 3910:Nearest 3870:Analogs 3800:Hayward 3768:Metrics 3413:Stellar 3338:Virtual 3333:Charged 3302:Outline 3179:Trivedi 3164:Sundrum 3129:Shenker 3119:Seiberg 3114:Schwarz 3084:Randall 3044:Novikov 3034:Nielsen 3019:Năstase 2929:Kallosh 2914:Gibbons 2854:Gliozzi 2844:Friedan 2834:Ferrara 2819:Douglas 2814:Distler 2364:S-brane 2344:D-brane 2301:Tachyon 2296:Dilaton 2110:Strings 2058:YouTube 1961:Bibcode 1935:Sources 1786:Bibcode 1730:Bibcode 1699:Bibcode 1612:9545752 1592:Bibcode 1555:Bibcode 1494:Bibcode 1447:Bibcode 1359:Bibcode 1247:Bibcode 1191:Bibcode 1110:Bibcode 1061:Bibcode 940:. Such 922:primary 828:GEO 600 809:GEO 600 623:photons 591:Later, 571:they do 394:entropy 359:entropy 310:nuclear 95:squared 91:entropy 4569:Others 4159:3C 273 4149:NeVe 1 4129:OJ 287 3851:Q star 3717:Issues 3450:Blazar 3440:Quasar 3244:Zumino 3239:Zaslow 3224:Yoneya 3214:Witten 3134:Siegel 3109:Scherk 3079:Ramond 3054:Ooguri 2979:Marolf 2934:Kaluza 2919:Kachru 2909:Hořava 2899:Harvey 2894:Hanson 2879:Gubser 2869:Greene 2799:Bousso 2784:Atiyah 2336:Branes 2146:Theory 1979:  1917:Nature 1804:  1748:  1687:: 26. 1666:  1635:  1610:  1520:  1512:  1465:  1379:  1265:  1209:  1152:  1120:  1079:  692:, and 674:branes 664:, and 551:Kelvin 505:  331:, and 176:modems 3892:Lists 3393:Micro 3363:Rogue 3311:Types 3184:Turok 3094:Roček 3059:Ovrut 3049:Olive 3029:Neveu 3009:Myers 3004:Mukhi 2994:Moore 2964:Linde 2959:Klein 2884:Gukov 2874:Gross 2864:Green 2849:Gates 2829:Dvali 2789:Banks 2016:arXiv 1990:arXiv 1977:S2CID 1951:arXiv 1802:S2CID 1776:arXiv 1746:S2CID 1689:arXiv 1608:S2CID 1582:arXiv 1545:arXiv 1518:S2CID 1463:S2CID 1349:arXiv 1263:S2CID 1237:arXiv 1207:S2CID 1181:arXiv 1100:arXiv 1077:S2CID 1051:arXiv 950:sound 899:Notes 400:law. 369:, or 44:space 3861:Geon 3785:Kerr 3386:Size 3209:Wess 3189:Vafa 3099:Rohm 2999:Motl 2924:Kaku 2889:Guth 2824:Duff 1925:2013 1897:2014 1875:2013 1832:2010 1664:ISBN 1633:ISBN 1578:1999 1510:ISSN 1424:2015 1377:ISSN 1150:ISBN 1118:ISBN 1023:2023 995:2022 798:The 380:But 365:and 312:and 249:The 180:DVDs 30:The 3455:OVV 3445:LQG 3219:Yau 3144:SĆĄn 3124:Sen 1969:doi 1794:doi 1738:doi 1726:104 1660:371 1600:doi 1502:doi 1455:doi 1367:doi 1255:doi 1199:doi 1069:doi 948:and 936:and 769:by 684:by 676:of 273:or 185:In 85:of 4688:: 2520:, 2513:, 2506:, 2499:, 2052:. 2046:. 2014:, 1975:. 1967:. 1959:. 1947:74 1945:. 1914:. 1865:. 1848:, 1823:. 1800:. 1792:. 1784:. 1772:77 1770:. 1744:. 1736:. 1724:. 1720:. 1697:. 1662:. 1606:. 1598:. 1590:. 1576:. 1553:. 1541:73 1539:. 1516:. 1508:. 1500:. 1490:31 1488:. 1484:. 1461:. 1453:. 1443:23 1441:. 1415:. 1375:. 1365:. 1357:. 1343:. 1339:. 1327:^ 1315:. 1300:^ 1261:. 1253:. 1245:. 1233:41 1231:. 1205:. 1197:. 1189:. 1177:74 1175:. 1132:^ 1116:. 1108:. 1075:. 1067:. 1059:. 1047:36 1045:. 1031:^ 1012:. 984:. 688:, 660:, 577:. 565:. 458:. 440:. 428:. 343:. 327:, 78:. 4256:e 4249:t 4242:v 3781:) 3777:( 3283:e 3276:t 3269:v 2610:2 2608:G 2577:? 2542:p 2527:) 2524:8 2522:E 2517:7 2515:E 2510:6 2508:E 2503:4 2501:F 2496:2 2494:G 2492:( 2088:e 2081:t 2074:v 2060:. 2018:: 1998:. 1992:: 1983:. 1971:: 1963:: 1953:: 1927:. 1899:. 1877:. 1834:. 1808:. 1796:: 1788:: 1778:: 1754:. 1752:. 1740:: 1732:: 1705:. 1701:: 1691:: 1672:. 1641:. 1614:. 1602:: 1594:: 1584:: 1561:. 1557:: 1547:: 1524:. 1504:: 1496:: 1469:. 1457:: 1449:: 1426:. 1383:. 1369:: 1361:: 1351:: 1345:2 1294:. 1269:. 1257:: 1249:: 1239:: 1213:. 1201:: 1193:: 1183:: 1158:. 1126:. 1112:: 1102:: 1083:. 1071:: 1063:: 1053:: 1025:. 997:. 555:T 547:S 524:. 519:T 513:2 509:c 502:M 489:= 486:S 481:d 414:R 27:.

Index

Holographic Universe (album)
The Holographic Principle
string theories
quantum gravity
space
boundary
light-like
gravitational horizon
Gerard 't Hooft
Leonard Susskind
Charles Thorn
Raphael Bousso
AdS/CFT correspondence
Bekenstein bound
black hole thermodynamics
entropy
black hole
information content
event horizon
black hole information paradox
Einstein equations
Wheeler's
Scientific American
Jacob Bekenstein
John Archibald Wheeler
information
William Blake
poetic license
information theory
Claude Shannon

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