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Electron magnetic moment

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3525: 3787: 3256: 3530: 1851:, a fundamental equation connecting the electron's spin with its electromagnetic properties. Reduction of the Dirac equation for an electron in a magnetic field to its non-relativistic limit yields the Schrödinger equation with a correction term, which takes account of the interaction of the electron's intrinsic magnetic moment with the magnetic field giving the correct energy. 3520:{\displaystyle {\begin{pmatrix}(mc^{2}-E+e\phi )&c\sigma \cdot \left(\mathbf {p} -{\frac {e}{c}}\mathbf {A} \right)\\-c{\boldsymbol {\sigma }}\cdot \left(\mathbf {p} -{\frac {e}{c}}\mathbf {A} \right)&\left(mc^{2}+E-e\phi \right)\end{pmatrix}}{\begin{pmatrix}\psi _{+}\\\psi _{-}\end{pmatrix}}={\begin{pmatrix}0\\0\end{pmatrix}}.} 2388: 3782:{\displaystyle {\begin{aligned}(E-e\phi )\psi _{+}-c{\boldsymbol {\sigma }}\cdot \left(\mathbf {p} -{\frac {e}{c}}\mathbf {A} \right)\psi _{-}&=mc^{2}\psi _{+}\\-(E-e\phi )\psi _{-}+c{\boldsymbol {\sigma }}\cdot \left(\mathbf {p} -{\frac {e}{c}}\mathbf {A} \right)\psi _{+}&=mc^{2}\psi _{-}\end{aligned}}} 3057: 2524:
in his 1921 paper on investigations of ferromagnetic substances with X-rays. In Compton's article, he wrote: "Perhaps the most natural, and certainly the most generally accepted view of the nature of the elementary magnet, is that the revolution of electrons in orbits within the atom give to the atom
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of the electron, standing in front of Pauli's new term, is explained from first principles. This was a major achievement of the Dirac equation and gave physicists great faith in its overall correctness. The Pauli theory may be seen as the low energy limit of the Dirac theory in the following manner.
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In a general case (if a certain linear function of electromagnetic field does not vanish identically), three out of four components of the spinor function in the Dirac equation can be algebraically eliminated, yielding an equivalent fourth-order partial differential equation for just one component.
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The operator on the left represents the particle energy reduced by its rest energy, which is just the classical energy, so we recover Pauli's theory if we identify his 2-spinor with the top components of the Dirac spinor in the non-relativistic approximation. A further approximation gives the
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as the limit of the Pauli theory. Thus the Schrödinger equation may be seen as the far non-relativistic approximation of the Dirac equation when one may neglect spin and work only at low energies and velocities. This also was a great triumph for the new equation, as it traced the mysterious
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that appears in it, and the necessity of a complex wave function, back to the geometry of space-time through the Dirac algebra. It also highlights why the Schrödinger equation, although superficially in the form of a diffusion equation, actually represents the propagation of waves.
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atoms, the beam was split in two—the ground state therefore could not be integral, because even if the intrinsic angular momentum of the atoms were as small as possible, 1, the beam would be split into 3 parts, corresponding to atoms with
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in the Bohr atom, Sommerfeld proposed that electrons would be based on three 'quantum numbers', n, k, and m, that described the size of the orbit, the shape of the orbit, and the direction in which the orbit was pointing.
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The electron magnetic moment is intrinsically connected to electron spin and was first hypothesized during the early models of the atom in the early twentieth century. The first to introduce the idea of electron spin was
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Charles P. Enz, Heisenberg's applications of quantum mechanics (1926-33) or the settling of the new land*), Department de Physique Théorique Université de Genève, 1211 Genève 4, Switzerland (10. I. 1983)
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The revolution of an electron around an axis through another object, such as the nucleus, gives rise to the orbital magnetic dipole moment. Suppose that the angular momentum for the orbital motion is
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Classical notions such as the center of charge and mass are, however, hard to make precise for a quantum elementary particle. In practice the definition used by experimentalists comes from the
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It should be strongly emphasized that this separation of the Dirac spinor into large and small components depends explicitly on a low-energy approximation. The entire Dirac spinor represents an
3803: 3535: 1933: 2873: 1210: 2930:. On squaring out the first term, a residual interaction with the magnetic field is found, along with the usual classical Hamiltonian of a charged particle interacting with an applied field: 1441: 4278: 1635:. The factor of two indicates that the electron appears to be twice as effective in producing a magnetic moment as a charged body for which the mass and charge distributions are identical. 431: 1716: 327: 1147: 3994: 4282: 1676: 1633: 3798: 2544:
of the atom with its classical elliptical electron orbits. During the period between 1916 and 1925, much progress was being made concerning the arrangement of electrons in the
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This Hamiltonian is now a 2 × 2 matrix, so the Schrödinger equation based on it must use a two-component wave function. Pauli had introduced the 2 × 2 sigma matrices as pure
3222: 2383:{\displaystyle \mu _{\text{L}}=-g_{\text{L}}{\frac {\mu _{\text{B}}}{\hbar }}\langle \Psi _{n,\ell ,m}|L|\Psi _{n,\ell ,m}\rangle =-\mu _{\text{B}}{\sqrt {\ell (\ell +1)}}.} 3991:
in the standard representation are much suppressed in comparison to the top components. Substituting this expression into the first equation gives after some rearrangement
3195: 1488: 567: 1288: 572: 1050: 218: 2444: 1243: 2685: 4521: 3052:{\displaystyle H={\frac {1}{2m}}\left(\mathbf {p} -{\frac {e}{c}}\mathbf {A} \right)^{2}+e\phi -{\frac {e\hbar }{2mc}}{\boldsymbol {\sigma }}\cdot \mathbf {B} .} 200:
If the electron is visualized as a classical rigid body in which the mass and charge have identical distribution and motion that is rotating about an axis with
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Assuming the field is weak and the motion of the electron non-relativistic, we have the total energy of the electron approximately equal to its
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had explained in his 1919 paper regarding electrons in their shells, "Rydberg has pointed out that these numbers are obtained from the series
3964:{\displaystyle \psi _{-}\approx {\frac {1}{2mc}}{\boldsymbol {\sigma }}\cdot \left(\mathbf {p} -{\frac {e}{c}}\mathbf {A} \right)\psi _{+}} 298:
in this equation may be the spin angular momentum, the orbital angular momentum, or the total angular momentum. The ratio between the true
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whole, and the components we have just neglected to arrive at the Pauli theory will bring in new phenomena in the relativistic regime -
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set up a theory which explained this splitting by introducing a two-component wave function and a corresponding correction term in the
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in which silver atoms in a magnetic field were deflected in opposite directions of distribution. This pre-1925 period marked the
4676: 2691:, in October 1924 in his paper 'The Distribution of Electrons Among Atomic Levels' published in the Philosophical Magazine. 2560: 1152: 524: 4531: 1385: 4201: 1883:
Note that this differs only marginally from the value from the Dirac equation. The small correction is known as the
4409: 2141:{\displaystyle {\boldsymbol {\mu }}_{\text{J}}=-g_{\text{J}}\,\mu _{\text{B}}\,{\frac {~\mathbf {J} ~}{\hbar }}\,.} 1884: 1580:{\displaystyle {\boldsymbol {\mu }}_{\text{s}}=-g_{\text{s}}\,\mu _{\text{B}}\,{\frac {~\mathbf {S} ~}{\hbar }}\,.} 3103: 4896: 4414: 2756: 1444: 508: 1104: 2061:
resulting from both spin and orbital angular momenta of an electron is related to the total angular momentum
17: 2004:{\displaystyle {\boldsymbol {\mu }}_{L}=-g_{\text{L}}\,\mu _{\text{B}}\,{\frac {~\mathbf {L} ~}{\hbar }}\,.} 2722: 2533: 1648: 1605: 3248:, have the same squaring and commutation properties as the Pauli matrices. What is more, the value of the 4911: 4193: 1055: 3253:
First the equation is written in the form of coupled equations for 2-spinors with the units restored:
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will now reproduce the Pauli term exactly as before, because the spatial Dirac matrices multiplied by
487:{\displaystyle {\boldsymbol {\mu }}=-g_{\text{e}}\,\mu _{\text{B}}\,{\frac {\mathbf {L} }{\hbar }}\,.} 4906: 4189: 2884: 1790:{\displaystyle ({\boldsymbol {\mu }}_{\text{s}})_{z}=-g_{\text{s}}\,\mu _{\text{B}}\,m_{\text{s}}\,,} 170: 3200: 190: 4901: 2417: 2413: 402:{\displaystyle {\boldsymbol {\mu }}=g_{\text{e}}\,{\frac {(-e)}{~2m_{\text{e}}~}}\,\mathbf {L} \,.} 1450: 529: 4891: 4632: 4404: 4399: 2432: 2421: 1892: 1888: 1248: 412: 31: 4156: 4145:{\displaystyle \left(E-mc^{2}\right)\psi _{+}={\frac {1}{2m}}\left^{2}\psi _{+}+e\phi \psi _{+}} 4389: 4368:{\displaystyle {\frac {g}{2}}={\frac {{\bar {\nu }}_{c}+{\bar {\nu }}_{a}}{{\bar {\nu }}_{c}}}} 2223: 2058: 303: 1019: 4860: 4795: 4749: 4621:
Manjit Kumar, Quantum: Einstein, Bohr and the Great Debate About the Nature of Reality, 2008.
4220: 2896: 2760: 2725:. A beam of atoms is run through a strong non-uniform magnetic field, which then splits into 2045:
is exactly equal to one, by a quantum-mechanical argument analogous to the derivation of the
1215: 2741:= −1, 0, and +1. The conclusion is that silver atoms have net intrinsic angular momentum of 2660: 4807: 4698: 3865:{\displaystyle {\begin{aligned}E-e\phi &\approx mc^{2}\\p&\approx mv\end{aligned}}} 1824: 1503: 299: 4480: 3241: 8: 4722: 4424: 4197: 1805: 4811: 4702: 4870: 4714: 4688: 4492: 4224: 3249: 3074: 2892: 2537: 2151: 2046: 2021: 1855: 1832: 1596: 316: 4648: 4599: 2729:
parts depending on the intrinsic angular momentum of the atoms. It was found that for
2657:. The factor two suggests a fundamental two-fold symmetry for all stable atoms." This 4823: 4718: 4527: 3078: 154: 4665:. Nobel Lecture delivered on December 13th 1946 for the 1945 Nobel Prize in Physics. 2186: 2164: 4856: 4815: 4761: 4706: 4644: 4595: 4506: 4502: 3086: 2397: 1887:
of the electron; it arises from the electron's interaction with virtual photons in
1007:{\displaystyle \langle p_{f}|j^{\mu }|p_{i}\rangle ={\bar {u}}(p_{f})\leftu(p_{i})} 292: 201: 158: 142: 4447: 4661:
Wolfgang Pauli. Exclusion principle and quantum mechanics. Online available via ⟨
4547: 4212: 2554: 2424: 270:{\displaystyle {\boldsymbol {\mu }}={\frac {-e}{2m_{\text{e}}}}\,\mathbf {L} \,,} 194: 178: 174: 66: 54: 2505:{\displaystyle ({\boldsymbol {\mu }}_{\text{L}})_{z}=-\mu _{\text{B}}m_{\ell }.} 4791: 4745: 4579: 4419: 4384: 3237: 3229: 3225: 3070: 2927: 2752: 2718: 2708: 2704: 2695:
hypothesized that this required a fourth quantum number with a two-valuedness.
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Furthermore, this remaining component can be made real by a gauge transform.
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of the electromagnetic current operator between two on-shell states. Here
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that depends on the orientation of this dipole with respect to the field.
3792: 3082: 3987:- thus at typical energies and velocities, the bottom components of the 4173: 2541: 2529: 2431:
component of the orbital magnetic dipole moment for an electron with a
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spectroscopy. The spin frequency of the electron is determined by the
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Fan, X.; Myers, T. G.; Sukra, B. A. D.; Gabrielse, G. (2023-02-13).
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using the measured resonance frequency for several transitions.
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of the electron has been measured using a one-electron quantum
2730: 1375:{\textstyle \mu ={\frac {1}{2m_{\text{e}}}}(F_{1}(0)+F_{2}(0))} 1212:
is the momentum transfer from the current to the electron. The
1899:-factor. The CODATA value for the electron magnetic moment is 1854:
For the electron spin, the most accurate value for the spin
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It is usual to express the magnetic moment in terms of the
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and the idea of creation and annihilation of particles.
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as a whole the properties of a tiny permanent magnet."
125:, a value that was measured with a relative accuracy of 4552:
The NIST Reference on Constants, Units, and Uncertainty
4452:
The NIST Reference on Constants, Units, and Uncertainty
4478: 3493: 3450: 3265: 1388: 1296: 4633:"The arrangement of electrons in atoms and molecules" 4285: 4236: 3997: 3878: 3801: 3533: 3259: 3203: 3106: 2936: 2773: 2663: 2563: 2447: 2232: 2073: 1936: 1861:
has been experimentally determined to have the value
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The spin magnetic dipole moment is approximately one
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of the electron has been detected experimentally by
3795:, and the momentum reducing to the classical value, 2650:{\displaystyle N=2(1+2^{2}+2^{2}+3^{2}+3^{2}+4^{2})} 2532:
proposed an experiment carried out later called the
3085:into the Dirac equation in a similar way, known as 2717: . The necessity of introducing half-integral 4869: 4367: 4272: 4144: 3963: 3864: 3781: 3519: 3216: 3189: 3051: 2868:{\displaystyle H={\frac {1}{2m}}\left^{2}+e\phi .} 2867: 2713:Starting from here the charge of the electron is 2679: 2649: 2504: 2382: 2140: 2003: 1895:theory is the accurate prediction of the electron 1789: 1670: 1627: 1579: 1482: 1435: 1374: 1282: 1237: 1205:{\displaystyle q^{\mu }=p_{f}^{\mu }-p_{i}^{\mu }} 1204: 1141: 1089: 1044: 1006: 561: 486: 401: 269: 1919: 136: 4883: 4855: 1595:is the electron spin angular momentum. The spin 1436:{\textstyle -{\frac {1}{2m_{\text{e}}}}F_{3}(0)} 4519: 4442: 4440: 4273:{\displaystyle \nu _{s}={\frac {g}{2}}\nu _{c}} 2721:goes back experimentally to the results of the 2052: 3081:. On introducing the external electromagnetic 1497: 4574: 4572: 4481:"Measurement of the Electron Magnetic Moment" 4448:"2022 CODATA Value: electron magnetic moment" 3073:was somehow the consequence of incorporating 2699:Electron spin in the Pauli and Dirac theories 1930:. Then the orbital magnetic dipole moment is 1713:component of the electron magnetic moment is 4437: 4200:of electron shell energy levels in atoms of 2336: 2276: 619: 576: 4540: 61:resulting from its intrinsic properties of 4790: 4743: 4569: 3872:and so the second equation may be written 1382:is its static magnetic dipole moment, and 30:"Electron spin" redirects here. See also 4692: 4674: 4496: 4196:method. This allows the determination of 2196: 2134: 2113: 2102: 1997: 1976: 1965: 1783: 1772: 1761: 1573: 1552: 1541: 1142:{\displaystyle {\bar {u}}u=2m_{\text{e}}} 872: 730: 480: 467: 456: 395: 389: 349: 263: 257: 4630: 4578: 4062: 3911: 3695: 3573: 3357: 3034: 2802: 2453: 2076: 1939: 1725: 1515: 436: 332: 223: 14: 4884: 4548:"2022 CODATA Value: electron g factor" 302:and that predicted by this model is a 185:. One consequence is that an external 4796:"The magnetic moment of the electron" 2767:to an applied magnetic field, as so: 1671:{\displaystyle g_{\text{s}}\approx 2} 1628:{\displaystyle g_{\text{s}}\approx 2} 4474: 4472: 1506:is intrinsic for an electron. It is 1443:provides the formal definion of the 518: 24: 4834:from the original on 22 April 2021 4750:"Intrinsic moment of the electron" 4520:Mahajan, A.; Rangwala, A. (1989). 3134: 2315: 2280: 161:comes from two types of rotation: 25: 4923: 4862:Magnetism of Elementary Particles 4772:from the original on 8 March 2021 4637:Journal of the Franklin Institute 4588:Journal of the Franklin Institute 4469: 3016: 2271: 2129: 1992: 1568: 1445:electron's electric dipole moment 1090:{\displaystyle {\bar {u}}(p_{f})} 569:appearing in the matrix element 475: 181:, so that it behaves like a tiny 4410:Anomalous magnetic dipole moment 4093: 4075: 3942: 3924: 3726: 3708: 3604: 3586: 3388: 3370: 3337: 3319: 3042: 2983: 2965: 2833: 2815: 2121: 1984: 1885:anomalous magnetic dipole moment 1560: 471: 391: 259: 4849: 4794:; Foley, H.M. (1 August 1948). 4784: 4737: 4681:Journal of Mathematical Physics 4668: 4415:Electron electric dipole moment 51:electron magnetic dipole moment 4877:. University of Chicago Press. 4655: 4624: 4615: 4606: 4513: 4507:10.1103/PhysRevLett.130.071801 4351: 4331: 4309: 4183: 3675: 3660: 3553: 3538: 3299: 3268: 3240:. A second application of the 3217:{\displaystyle \gamma ^{\mu }} 2644: 2573: 2464: 2448: 2372: 2360: 2310: 2302: 1920:Orbital magnetic dipole moment 1828:to the spin angular momentum. 1736: 1720: 1477: 1464: 1430: 1424: 1369: 1366: 1360: 1344: 1338: 1325: 1268: 1262: 1114: 1097:are 4-spinor solution of the 1084: 1071: 1065: 1039: 1026: 1001: 988: 977: 964: 854: 841: 780: 767: 681: 668: 650: 637: 631: 605: 590: 556: 543: 362: 353: 137:Magnetic moment of an electron 13: 1: 4649:10.1016/S0016-0032(19)91097-0 4600:10.1016/S0016-0032(21)90917-7 4431: 2687:configuration was adopted by 509:angular momentum is quantized 209:, its magnetic dipole moment 173:, a rotating distribution of 3190:{\displaystyle \left\psi =0} 2053:Total magnetic dipole moment 2047:classical gyromagnetic ratio 1822:, so the magnetic moment is 1483:{\displaystyle F_{4}(q^{2})} 1447:. The remaining form factor 562:{\displaystyle F_{i}(q^{2})} 498:magnetic moment is quantized 7: 4377: 1818:constant multiplied by the 1678:and the electron is a spin- 1498:Spin magnetic dipole moment 1490:would, if non zero, be the 1283:{\displaystyle F_{1}(0)=-e} 49:, or more specifically the 10: 4928: 4675:Akhmeteli, Andrey (2011). 2702: 2548:. In order to explain the 2514: 2185:by quantum mechanics. See 2171:, which can be related to 1290:is the electron's charge, 29: 4631:Langmuir, Irving (1919). 4523:Electricity and Magnetism 4190:anomalous magnetic moment 2885:magnetic vector potential 171:classical electrodynamics 155:unit of elementary charge 3089:, it takes the form (in 2895:, both representing the 2723:Stern–Gerlach experiment 2534:Stern–Gerlach experiment 2020:is the electron orbital 1045:{\displaystyle u(p_{i})} 315:, known as the electron 47:electron magnetic moment 4584:"The Magnetic Electron" 4485:Physical Review Letters 4405:Nucleon magnetic moment 4400:Nuclear magnetic moment 2433:magnetic quantum number 2067:by a similar equation: 1893:quantum electrodynamics 1889:quantum electrodynamics 1238:{\displaystyle q^{2}=0} 413:reduced Planck constant 32:Electron spin resonance 4897:Electric dipole moment 4820:10.1103/PhysRev.74.250 4766:10.1103/PhysRev.73.412 4663:http://nobelprize.org⟩ 4390:Electron precipitation 4369: 4274: 4146: 3965: 3866: 3783: 3521: 3218: 3191: 3053: 2869: 2681: 2680:{\displaystyle 2n^{2}} 2651: 2506: 2384: 2224:magnetic dipole moment 2197:Example: hydrogen atom 2142: 2059:magnetic dipole moment 2005: 1791: 1672: 1629: 1602:is approximately two: 1581: 1484: 1437: 1376: 1284: 1239: 1206: 1143: 1091: 1046: 1008: 563: 507:, correspondingly the 488: 403: 271: 4370: 4275: 4221:quantum nondemolition 4188:The existence of the 4147: 3966: 3867: 3784: 3522: 3219: 3192: 3054: 2897:electromagnetic field 2870: 2682: 2652: 2542:Bohr-Sommerfeld model 2507: 2385: 2143: 2006: 1792: 1673: 1630: 1582: 1485: 1438: 1377: 1285: 1240: 1207: 1144: 1092: 1047: 1009: 564: 489: 404: 272: 4748:(15 February 1948). 4283: 4234: 4157:Schrödinger equation 3995: 3876: 3799: 3531: 3257: 3201: 3104: 3067:theoretical argument 2934: 2771: 2661: 2561: 2445: 2230: 2071: 1934: 1717: 1649: 1606: 1510: 1504:spin magnetic moment 1451: 1386: 1294: 1249: 1216: 1153: 1105: 1056: 1020: 573: 530: 432: 328: 300:spin magnetic moment 219: 4812:1948PhRv...74..250K 4703:2011JMP....52h2303A 4425:Hyperfine structure 4198:hyperfine splitting 1891:. A triumph of the 1806:spin quantum number 1201: 1183: 1101:normalized so that 27:Spin of an electron 4912:Physical constants 4871:Sin-Itiro Tomonaga 4580:Compton, Arthur H. 4365: 4270: 4194:magnetic resonance 4142: 3973:which is of order 3961: 3862: 3860: 3779: 3777: 3517: 3508: 3479: 3439: 3250:gyromagnetic ratio 3214: 3187: 3069:that implied that 3065:— Dirac now had a 3049: 2893:electric potential 2865: 2677: 2647: 2538:old quantum theory 2502: 2427:respectively. The 2380: 2138: 2001: 1787: 1668: 1625: 1577: 1480: 1433: 1372: 1280: 1235: 1202: 1187: 1169: 1139: 1087: 1042: 1004: 559: 484: 399: 267: 141:The electron is a 91:. In units of the 4875:The Story of Spin 4865:. Mir Publishers. 4711:10.1063/1.3624336 4363: 4354: 4334: 4312: 4294: 4258: 4090: 4053: 3939: 3908: 3723: 3601: 3385: 3334: 3079:quantum mechanics 3031: 2980: 2956: 2830: 2793: 2763:coupling of this 2759:, representing a 2486: 2460: 2375: 2352: 2274: 2268: 2256: 2240: 2132: 2127: 2119: 2110: 2099: 2083: 1995: 1990: 1982: 1973: 1962: 1780: 1769: 1758: 1732: 1659: 1616: 1571: 1566: 1558: 1549: 1538: 1522: 1412: 1408: 1323: 1319: 1136: 1117: 1068: 927: 887: 885: 880: 868: 745: 743: 738: 726: 721: 702: 634: 519:Formal definition 478: 464: 453: 387: 385: 380: 369: 346: 255: 251: 16:(Redirected from 4919: 4907:Particle physics 4878: 4866: 4857:Sergei Vonsovsky 4844: 4843: 4841: 4839: 4788: 4782: 4781: 4779: 4777: 4741: 4735: 4734: 4732: 4730: 4721:. Archived from 4696: 4672: 4666: 4659: 4653: 4652: 4628: 4622: 4619: 4613: 4610: 4604: 4603: 4576: 4567: 4566: 4564: 4563: 4544: 4538: 4537: 4517: 4511: 4510: 4500: 4476: 4467: 4466: 4464: 4463: 4444: 4374: 4372: 4371: 4366: 4364: 4362: 4361: 4356: 4355: 4347: 4343: 4342: 4341: 4336: 4335: 4327: 4320: 4319: 4314: 4313: 4305: 4300: 4295: 4287: 4279: 4277: 4276: 4271: 4269: 4268: 4259: 4251: 4246: 4245: 4227: 4163: 4151: 4149: 4148: 4143: 4141: 4140: 4122: 4121: 4112: 4111: 4106: 4102: 4101: 4097: 4096: 4091: 4083: 4078: 4065: 4054: 4052: 4041: 4036: 4035: 4026: 4022: 4021: 4020: 3986: 3985: 3984: 3979: 3978: 3970: 3968: 3967: 3962: 3960: 3959: 3950: 3946: 3945: 3940: 3932: 3927: 3914: 3909: 3907: 3893: 3888: 3887: 3871: 3869: 3868: 3863: 3861: 3837: 3836: 3788: 3786: 3785: 3780: 3778: 3774: 3773: 3764: 3763: 3744: 3743: 3734: 3730: 3729: 3724: 3716: 3711: 3698: 3687: 3686: 3652: 3651: 3642: 3641: 3622: 3621: 3612: 3608: 3607: 3602: 3594: 3589: 3576: 3565: 3564: 3526: 3524: 3523: 3518: 3513: 3512: 3484: 3483: 3476: 3475: 3462: 3461: 3444: 3443: 3436: 3432: 3416: 3415: 3396: 3392: 3391: 3386: 3378: 3373: 3360: 3345: 3341: 3340: 3335: 3327: 3322: 3283: 3282: 3247: 3235: 3223: 3221: 3220: 3215: 3213: 3212: 3196: 3194: 3193: 3188: 3177: 3173: 3166: 3162: 3161: 3160: 3142: 3141: 3127: 3126: 3099: 3095: 3087:minimal coupling 3058: 3056: 3055: 3050: 3045: 3037: 3032: 3030: 3019: 3011: 2997: 2996: 2991: 2987: 2986: 2981: 2973: 2968: 2957: 2955: 2944: 2922: 2915: 2908: 2904: 2890: 2882: 2874: 2872: 2871: 2866: 2852: 2851: 2846: 2842: 2841: 2837: 2836: 2831: 2823: 2818: 2805: 2794: 2792: 2781: 2750: 2749: 2745: 2737: 2728: 2716: 2686: 2684: 2683: 2678: 2676: 2675: 2656: 2654: 2653: 2648: 2643: 2642: 2630: 2629: 2617: 2616: 2604: 2603: 2591: 2590: 2511: 2509: 2508: 2503: 2498: 2497: 2488: 2487: 2484: 2472: 2471: 2462: 2461: 2458: 2456: 2437: 2430: 2411: 2407: 2403: 2398:angular momentum 2395: 2389: 2387: 2386: 2381: 2376: 2356: 2354: 2353: 2350: 2335: 2334: 2313: 2305: 2300: 2299: 2275: 2270: 2269: 2266: 2260: 2258: 2257: 2254: 2242: 2241: 2238: 2219: 2215: 2181: 2174: 2163:is known as the 2159: 2154: 2147: 2145: 2144: 2139: 2133: 2128: 2125: 2124: 2117: 2115: 2112: 2111: 2108: 2101: 2100: 2097: 2085: 2084: 2081: 2079: 2066: 2041: 2030: 2024: 2016: 2010: 2008: 2007: 2002: 1996: 1991: 1988: 1987: 1980: 1978: 1975: 1974: 1971: 1964: 1963: 1960: 1948: 1947: 1942: 1929: 1915: 1913: 1909: 1906: 1879: 1877: 1874: 1871: 1868: 1858: 1846: 1841: 1813: 1800: 1796: 1794: 1793: 1788: 1782: 1781: 1778: 1771: 1770: 1767: 1760: 1759: 1756: 1744: 1743: 1734: 1733: 1730: 1728: 1712: 1705: 1704: 1703: 1699: 1698: 1692: 1687: 1686: 1682: 1677: 1675: 1674: 1669: 1661: 1660: 1657: 1641: 1634: 1632: 1631: 1626: 1618: 1617: 1614: 1599: 1594: 1586: 1584: 1583: 1578: 1572: 1567: 1564: 1563: 1556: 1554: 1551: 1550: 1547: 1540: 1539: 1536: 1524: 1523: 1520: 1518: 1489: 1487: 1486: 1481: 1476: 1475: 1463: 1462: 1442: 1440: 1439: 1434: 1423: 1422: 1413: 1411: 1410: 1409: 1406: 1393: 1381: 1379: 1378: 1373: 1359: 1358: 1337: 1336: 1324: 1322: 1321: 1320: 1317: 1304: 1289: 1287: 1286: 1281: 1261: 1260: 1244: 1242: 1241: 1236: 1228: 1227: 1211: 1209: 1208: 1203: 1200: 1195: 1182: 1177: 1165: 1164: 1148: 1146: 1145: 1140: 1138: 1137: 1134: 1119: 1118: 1110: 1096: 1094: 1093: 1088: 1083: 1082: 1070: 1069: 1061: 1051: 1049: 1048: 1043: 1038: 1037: 1013: 1011: 1010: 1005: 1000: 999: 984: 980: 976: 975: 963: 962: 953: 952: 943: 939: 938: 937: 928: 926: 918: 917: 908: 903: 902: 888: 886: 883: 882: 881: 878: 866: 861: 853: 852: 840: 839: 830: 829: 820: 819: 807: 806: 779: 778: 766: 765: 756: 755: 746: 744: 741: 740: 739: 736: 724: 722: 719: 718: 717: 700: 698: 693: 692: 680: 679: 667: 666: 649: 648: 636: 635: 627: 618: 617: 608: 603: 602: 593: 588: 587: 568: 566: 565: 560: 555: 554: 542: 541: 514: 503: 493: 491: 490: 485: 479: 474: 469: 466: 465: 462: 455: 454: 451: 439: 424: 417: 408: 406: 405: 400: 394: 388: 386: 383: 382: 381: 378: 367: 365: 351: 348: 347: 344: 335: 321: 314: 293:angular momentum 280: 276: 274: 273: 268: 262: 256: 254: 253: 252: 249: 239: 231: 226: 214: 208: 202:angular momentum 193:on the electron 159:angular momentum 152: 148: 143:charged particle 132: 130: 124: 116: 113: 110: 107: 90: 88: 84: 81: 21: 4927: 4926: 4922: 4921: 4920: 4918: 4917: 4916: 4902:Magnetic moment 4882: 4881: 4852: 4847: 4837: 4835: 4800:Physical Review 4792:Kusch, Polykarp 4789: 4785: 4775: 4773: 4754:Physical Review 4746:Kusch, Polykarp 4742: 4738: 4728: 4726: 4725:on 18 July 2012 4673: 4669: 4660: 4656: 4629: 4625: 4620: 4616: 4611: 4607: 4582:(August 1921). 4577: 4570: 4561: 4559: 4546: 4545: 4541: 4534: 4526:. p. 419. 4518: 4514: 4477: 4470: 4461: 4459: 4446: 4445: 4438: 4434: 4429: 4380: 4357: 4346: 4345: 4344: 4337: 4326: 4325: 4324: 4315: 4304: 4303: 4302: 4301: 4299: 4286: 4284: 4281: 4280: 4264: 4260: 4250: 4241: 4237: 4235: 4232: 4231: 4225: 4213:magnetic moment 4186: 4161: 4136: 4132: 4117: 4113: 4107: 4092: 4082: 4074: 4073: 4069: 4061: 4060: 4056: 4055: 4045: 4040: 4031: 4027: 4016: 4012: 4002: 3998: 3996: 3993: 3992: 3982: 3981: 3976: 3975: 3974: 3955: 3951: 3941: 3931: 3923: 3922: 3918: 3910: 3897: 3892: 3883: 3879: 3877: 3874: 3873: 3859: 3858: 3845: 3839: 3838: 3832: 3828: 3818: 3802: 3800: 3797: 3796: 3776: 3775: 3769: 3765: 3759: 3755: 3745: 3739: 3735: 3725: 3715: 3707: 3706: 3702: 3694: 3682: 3678: 3654: 3653: 3647: 3643: 3637: 3633: 3623: 3617: 3613: 3603: 3593: 3585: 3584: 3580: 3572: 3560: 3556: 3534: 3532: 3529: 3528: 3507: 3506: 3500: 3499: 3489: 3488: 3478: 3477: 3471: 3467: 3464: 3463: 3457: 3453: 3446: 3445: 3438: 3437: 3411: 3407: 3403: 3399: 3397: 3387: 3377: 3369: 3368: 3364: 3356: 3347: 3346: 3336: 3326: 3318: 3317: 3313: 3302: 3278: 3274: 3261: 3260: 3258: 3255: 3254: 3245: 3233: 3208: 3204: 3202: 3199: 3198: 3156: 3152: 3137: 3133: 3132: 3128: 3122: 3118: 3111: 3107: 3105: 3102: 3101: 3097: 3093: 3041: 3033: 3020: 3012: 3010: 2992: 2982: 2972: 2964: 2963: 2959: 2958: 2948: 2943: 2935: 2932: 2931: 2925: 2920: 2918: 2913: 2911: 2906: 2900: 2888: 2878: 2847: 2832: 2822: 2814: 2813: 2809: 2801: 2800: 2796: 2795: 2785: 2780: 2772: 2769: 2768: 2747: 2743: 2742: 2740: 2735: 2726: 2714: 2711: 2703:Main articles: 2701: 2671: 2667: 2662: 2659: 2658: 2638: 2634: 2625: 2621: 2612: 2608: 2599: 2595: 2586: 2582: 2562: 2559: 2558: 2555:Irving Langmuir 2540:built upon the 2528:That same year 2517: 2493: 2489: 2483: 2479: 2467: 2463: 2457: 2452: 2451: 2446: 2443: 2442: 2440: 2435: 2428: 2425:quantum numbers 2409: 2405: 2401: 2396:is the orbital 2393: 2355: 2349: 2345: 2318: 2314: 2309: 2301: 2283: 2279: 2265: 2261: 2259: 2253: 2249: 2237: 2233: 2231: 2228: 2227: 2221: 2217: 2213: 2199: 2184: 2179: 2177: 2172: 2162: 2157: 2152: 2120: 2116: 2114: 2107: 2103: 2096: 2092: 2080: 2075: 2074: 2072: 2069: 2068: 2062: 2055: 2044: 2039: 2038:. The value of 2033: 2028: 2022: 2019: 2014: 1983: 1979: 1977: 1970: 1966: 1959: 1955: 1943: 1938: 1937: 1935: 1932: 1931: 1925: 1922: 1917: 1911: 1907: 1904: 1902: 1881: 1875: 1872: 1869: 1866: 1864: 1856: 1847:comes from the 1844: 1839: 1838: 1809: 1803: 1798: 1777: 1773: 1766: 1762: 1755: 1751: 1739: 1735: 1729: 1724: 1723: 1718: 1715: 1714: 1710: 1701: 1696: 1695: 1694: 1690: 1689: 1684: 1680: 1679: 1656: 1652: 1650: 1647: 1646: 1644: 1639: 1613: 1609: 1607: 1604: 1603: 1597: 1590: 1559: 1555: 1553: 1546: 1542: 1535: 1531: 1519: 1514: 1513: 1511: 1508: 1507: 1500: 1471: 1467: 1458: 1454: 1452: 1449: 1448: 1418: 1414: 1405: 1401: 1397: 1392: 1387: 1384: 1383: 1354: 1350: 1332: 1328: 1316: 1312: 1308: 1303: 1295: 1292: 1291: 1256: 1252: 1250: 1247: 1246: 1223: 1219: 1217: 1214: 1213: 1196: 1191: 1178: 1173: 1160: 1156: 1154: 1151: 1150: 1133: 1129: 1109: 1108: 1106: 1103: 1102: 1078: 1074: 1060: 1059: 1057: 1054: 1053: 1033: 1029: 1021: 1018: 1017: 995: 991: 971: 967: 958: 954: 948: 944: 933: 929: 919: 913: 909: 907: 898: 894: 893: 889: 877: 873: 865: 860: 848: 844: 835: 831: 825: 821: 812: 808: 793: 789: 774: 770: 761: 757: 751: 747: 735: 731: 723: 710: 706: 699: 697: 688: 684: 675: 671: 662: 658: 657: 653: 644: 640: 626: 625: 613: 609: 604: 598: 594: 589: 583: 579: 574: 571: 570: 550: 546: 537: 533: 531: 528: 527: 521: 512: 506: 501: 470: 468: 461: 457: 450: 446: 435: 433: 430: 429: 427: 422: 415: 390: 377: 373: 366: 352: 350: 343: 339: 331: 329: 326: 325: 317: 313: 307: 283: 278: 258: 248: 244: 240: 232: 230: 222: 220: 217: 216: 210: 204: 195:magnetic moment 179:magnetic dipole 175:electric charge 150: 146: 139: 128: 126: 123: 114: 111: 108: 105: 103: 101: 86: 82: 79: 77: 75: 67:electric charge 55:magnetic moment 39: 28: 23: 22: 15: 12: 11: 5: 4925: 4915: 4914: 4909: 4904: 4899: 4894: 4892:Atomic physics 4880: 4879: 4867: 4851: 4848: 4846: 4845: 4783: 4736: 4667: 4654: 4643:(3): 359–362. 4623: 4614: 4605: 4568: 4539: 4532: 4512: 4468: 4435: 4433: 4430: 4428: 4427: 4422: 4420:Fine structure 4417: 4412: 4407: 4402: 4397: 4392: 4387: 4385:Spin (physics) 4381: 4379: 4376: 4360: 4353: 4350: 4340: 4333: 4330: 4323: 4318: 4311: 4308: 4298: 4293: 4290: 4267: 4263: 4257: 4254: 4249: 4244: 4240: 4185: 4182: 4139: 4135: 4131: 4128: 4125: 4120: 4116: 4110: 4105: 4100: 4095: 4089: 4086: 4081: 4077: 4072: 4068: 4064: 4059: 4051: 4048: 4044: 4039: 4034: 4030: 4025: 4019: 4015: 4011: 4008: 4005: 4001: 3958: 3954: 3949: 3944: 3938: 3935: 3930: 3926: 3921: 3917: 3913: 3906: 3903: 3900: 3896: 3891: 3886: 3882: 3857: 3854: 3851: 3848: 3846: 3844: 3841: 3840: 3835: 3831: 3827: 3824: 3821: 3819: 3817: 3814: 3811: 3808: 3805: 3804: 3772: 3768: 3762: 3758: 3754: 3751: 3748: 3746: 3742: 3738: 3733: 3728: 3722: 3719: 3714: 3710: 3705: 3701: 3697: 3693: 3690: 3685: 3681: 3677: 3674: 3671: 3668: 3665: 3662: 3659: 3656: 3655: 3650: 3646: 3640: 3636: 3632: 3629: 3626: 3624: 3620: 3616: 3611: 3606: 3600: 3597: 3592: 3588: 3583: 3579: 3575: 3571: 3568: 3563: 3559: 3555: 3552: 3549: 3546: 3543: 3540: 3537: 3536: 3516: 3511: 3505: 3502: 3501: 3498: 3495: 3494: 3492: 3487: 3482: 3474: 3470: 3466: 3465: 3460: 3456: 3452: 3451: 3449: 3442: 3435: 3431: 3428: 3425: 3422: 3419: 3414: 3410: 3406: 3402: 3398: 3395: 3390: 3384: 3381: 3376: 3372: 3367: 3363: 3359: 3355: 3352: 3349: 3348: 3344: 3339: 3333: 3330: 3325: 3321: 3316: 3312: 3309: 3306: 3303: 3301: 3298: 3295: 3292: 3289: 3286: 3281: 3277: 3273: 3270: 3267: 3266: 3264: 3242:Dirac operator 3238:imaginary unit 3230:Dirac matrices 3226:gamma matrices 3211: 3207: 3186: 3183: 3180: 3176: 3172: 3169: 3165: 3159: 3155: 3151: 3148: 3145: 3140: 3136: 3131: 3125: 3121: 3117: 3114: 3110: 3048: 3044: 3040: 3036: 3029: 3026: 3023: 3018: 3015: 3009: 3006: 3003: 3000: 2995: 2990: 2985: 2979: 2976: 2971: 2967: 2962: 2954: 2951: 2947: 2942: 2939: 2928:Pauli matrices 2923: 2916: 2909: 2864: 2861: 2858: 2855: 2850: 2845: 2840: 2835: 2829: 2826: 2821: 2817: 2812: 2808: 2804: 2799: 2791: 2788: 2784: 2779: 2776: 2761:semi-classical 2738: 2709:Dirac equation 2705:Pauli equation 2700: 2697: 2693:Wolfgang Pauli 2674: 2670: 2666: 2646: 2641: 2637: 2633: 2628: 2624: 2620: 2615: 2611: 2607: 2602: 2598: 2594: 2589: 2585: 2581: 2578: 2575: 2572: 2569: 2566: 2546:periodic table 2522:Arthur Compton 2516: 2513: 2501: 2496: 2492: 2482: 2478: 2475: 2470: 2466: 2455: 2450: 2438: 2379: 2374: 2371: 2368: 2365: 2362: 2359: 2348: 2344: 2341: 2338: 2333: 2330: 2327: 2324: 2321: 2317: 2312: 2308: 2304: 2298: 2295: 2292: 2289: 2286: 2282: 2278: 2273: 2264: 2252: 2248: 2245: 2236: 2216: 2211:atomic orbital 2209:occupying the 2198: 2195: 2182: 2175: 2160: 2137: 2131: 2123: 2106: 2095: 2091: 2088: 2078: 2054: 2051: 2042: 2031: 2017: 2000: 1994: 1986: 1969: 1958: 1954: 1951: 1946: 1941: 1921: 1918: 1901: 1863: 1849:Dirac equation 1842: 1801: 1786: 1776: 1765: 1754: 1750: 1747: 1742: 1738: 1727: 1722: 1667: 1664: 1655: 1642: 1624: 1621: 1612: 1576: 1570: 1562: 1545: 1534: 1530: 1527: 1517: 1499: 1496: 1492:anapole moment 1479: 1474: 1470: 1466: 1461: 1457: 1432: 1429: 1426: 1421: 1417: 1404: 1400: 1396: 1391: 1371: 1368: 1365: 1362: 1357: 1353: 1349: 1346: 1343: 1340: 1335: 1331: 1327: 1315: 1311: 1307: 1302: 1299: 1279: 1276: 1273: 1270: 1267: 1264: 1259: 1255: 1234: 1231: 1226: 1222: 1199: 1194: 1190: 1186: 1181: 1176: 1172: 1168: 1163: 1159: 1132: 1128: 1125: 1122: 1116: 1113: 1099:Dirac equation 1086: 1081: 1077: 1073: 1067: 1064: 1041: 1036: 1032: 1028: 1025: 1003: 998: 994: 990: 987: 983: 979: 974: 970: 966: 961: 957: 951: 947: 942: 936: 932: 925: 922: 916: 912: 906: 901: 897: 892: 876: 871: 864: 859: 856: 851: 847: 843: 838: 834: 828: 824: 818: 815: 811: 805: 802: 799: 796: 792: 788: 785: 782: 777: 773: 769: 764: 760: 754: 750: 734: 729: 716: 713: 709: 705: 696: 691: 687: 683: 678: 674: 670: 665: 661: 656: 652: 647: 643: 639: 633: 630: 624: 621: 616: 612: 607: 601: 597: 592: 586: 582: 578: 558: 553: 549: 545: 540: 536: 520: 517: 504: 483: 477: 473: 460: 449: 445: 442: 438: 425: 398: 393: 376: 372: 364: 361: 358: 355: 342: 338: 334: 311: 281: 266: 261: 247: 243: 238: 235: 229: 225: 187:magnetic field 167:orbital motion 138: 135: 121: 99: 73: 43:atomic physics 36:Spin (physics) 26: 9: 6: 4: 3: 2: 4924: 4913: 4910: 4908: 4905: 4903: 4900: 4898: 4895: 4893: 4890: 4889: 4887: 4876: 4872: 4868: 4864: 4863: 4858: 4854: 4853: 4833: 4829: 4825: 4821: 4817: 4813: 4809: 4806:(3): 207–11. 4805: 4801: 4797: 4793: 4787: 4771: 4767: 4763: 4759: 4755: 4751: 4747: 4744:Foley, H.M.; 4740: 4724: 4720: 4716: 4712: 4708: 4704: 4700: 4695: 4690: 4687:(8): 082303. 4686: 4682: 4678: 4671: 4664: 4658: 4650: 4646: 4642: 4638: 4634: 4627: 4618: 4609: 4601: 4597: 4593: 4589: 4585: 4581: 4575: 4573: 4557: 4553: 4549: 4543: 4535: 4533:9780074602256 4529: 4525: 4524: 4516: 4508: 4504: 4499: 4494: 4491:(7): 071801. 4490: 4486: 4482: 4475: 4473: 4457: 4453: 4449: 4443: 4441: 4436: 4426: 4423: 4421: 4418: 4416: 4413: 4411: 4408: 4406: 4403: 4401: 4398: 4396: 4395:Bohr magneton 4393: 4391: 4388: 4386: 4383: 4382: 4375: 4358: 4348: 4338: 4328: 4321: 4316: 4306: 4296: 4291: 4288: 4265: 4261: 4255: 4252: 4247: 4242: 4238: 4229: 4222: 4218: 4214: 4209: 4207: 4203: 4199: 4195: 4191: 4181: 4177: 4175: 4171: 4166: 4158: 4152: 4137: 4133: 4129: 4126: 4123: 4118: 4114: 4108: 4103: 4098: 4087: 4084: 4079: 4070: 4066: 4057: 4049: 4046: 4042: 4037: 4032: 4028: 4023: 4017: 4013: 4009: 4006: 4003: 3999: 3990: 3971: 3956: 3952: 3947: 3936: 3933: 3928: 3919: 3915: 3904: 3901: 3898: 3894: 3889: 3884: 3880: 3855: 3852: 3849: 3847: 3842: 3833: 3829: 3825: 3822: 3820: 3815: 3812: 3809: 3806: 3794: 3789: 3770: 3766: 3760: 3756: 3752: 3749: 3747: 3740: 3736: 3731: 3720: 3717: 3712: 3703: 3699: 3691: 3688: 3683: 3679: 3672: 3669: 3666: 3663: 3657: 3648: 3644: 3638: 3634: 3630: 3627: 3625: 3618: 3614: 3609: 3598: 3595: 3590: 3581: 3577: 3569: 3566: 3561: 3557: 3550: 3547: 3544: 3541: 3514: 3509: 3503: 3496: 3490: 3485: 3480: 3472: 3468: 3458: 3454: 3447: 3440: 3433: 3429: 3426: 3423: 3420: 3417: 3412: 3408: 3404: 3400: 3393: 3382: 3379: 3374: 3365: 3361: 3353: 3350: 3342: 3331: 3328: 3323: 3314: 3310: 3307: 3304: 3296: 3293: 3290: 3287: 3284: 3279: 3275: 3271: 3262: 3251: 3243: 3239: 3231: 3227: 3209: 3205: 3184: 3181: 3178: 3174: 3170: 3167: 3163: 3157: 3153: 3149: 3146: 3143: 3138: 3129: 3123: 3119: 3115: 3112: 3108: 3092: 3091:natural units 3088: 3084: 3080: 3076: 3072: 3068: 3064: 3063:phenomenology 3059: 3046: 3038: 3027: 3024: 3021: 3013: 3007: 3004: 3001: 2998: 2993: 2988: 2977: 2974: 2969: 2960: 2952: 2949: 2945: 2940: 2937: 2929: 2903: 2898: 2894: 2886: 2881: 2875: 2862: 2859: 2856: 2853: 2848: 2843: 2838: 2827: 2824: 2819: 2810: 2806: 2797: 2789: 2786: 2782: 2777: 2774: 2766: 2765:wave function 2762: 2758: 2754: 2732: 2724: 2720: 2710: 2706: 2696: 2694: 2690: 2689:Edmund Stoner 2672: 2668: 2664: 2639: 2635: 2631: 2626: 2622: 2618: 2613: 2609: 2605: 2600: 2596: 2592: 2587: 2583: 2579: 2576: 2570: 2567: 2564: 2556: 2551: 2550:Zeeman effect 2547: 2543: 2539: 2535: 2531: 2526: 2523: 2512: 2499: 2494: 2490: 2480: 2476: 2473: 2468: 2434: 2426: 2423: 2419: 2415: 2399: 2390: 2377: 2369: 2366: 2363: 2357: 2346: 2342: 2339: 2331: 2328: 2325: 2322: 2319: 2306: 2296: 2293: 2290: 2287: 2284: 2262: 2250: 2246: 2243: 2234: 2225: 2212: 2208: 2204: 2194: 2193:for details. 2192: 2190: 2170: 2168: 2156: 2148: 2135: 2104: 2093: 2089: 2086: 2065: 2060: 2050: 2048: 2037: 2036:Bohr magneton 2026: 2011: 1998: 1967: 1956: 1952: 1949: 1944: 1928: 1900: 1898: 1894: 1890: 1886: 1862: 1860: 1852: 1850: 1837: 1835: 1829: 1827: 1826: 1821: 1817: 1812: 1807: 1784: 1774: 1763: 1752: 1748: 1745: 1740: 1707: 1665: 1662: 1653: 1636: 1622: 1619: 1610: 1601: 1593: 1587: 1574: 1543: 1532: 1528: 1525: 1505: 1495: 1493: 1472: 1468: 1459: 1455: 1446: 1427: 1419: 1415: 1402: 1398: 1394: 1389: 1363: 1355: 1351: 1347: 1341: 1333: 1329: 1313: 1309: 1305: 1300: 1297: 1277: 1274: 1271: 1265: 1257: 1253: 1232: 1229: 1224: 1220: 1197: 1192: 1188: 1184: 1179: 1174: 1170: 1166: 1161: 1157: 1130: 1126: 1123: 1120: 1111: 1100: 1079: 1075: 1062: 1034: 1030: 1023: 1014: 996: 992: 985: 981: 972: 968: 959: 955: 949: 945: 940: 934: 930: 923: 920: 914: 910: 904: 899: 895: 890: 874: 869: 862: 857: 849: 845: 836: 832: 826: 822: 816: 813: 809: 803: 800: 797: 794: 790: 786: 783: 775: 771: 762: 758: 752: 748: 732: 727: 714: 711: 707: 703: 694: 689: 685: 676: 672: 663: 659: 654: 645: 641: 628: 622: 614: 610: 599: 595: 584: 580: 551: 547: 538: 534: 526: 516: 510: 499: 494: 481: 458: 447: 443: 440: 421: 420:Bohr magneton 414: 409: 396: 374: 370: 359: 356: 340: 336: 323: 320: 310: 305: 304:dimensionless 301: 297: 294: 290: 287: 264: 245: 241: 236: 233: 227: 215:is given by: 213: 207: 203: 198: 196: 192: 188: 184: 180: 176: 172: 168: 164: 160: 156: 145:with charge − 144: 134: 120: 98: 94: 93:Bohr magneton 72: 68: 64: 60: 56: 52: 48: 44: 37: 33: 19: 18:Electron spin 4874: 4861: 4850:Bibliography 4836:. Retrieved 4803: 4799: 4786: 4774:. Retrieved 4757: 4753: 4739: 4727:. Retrieved 4723:the original 4684: 4680: 4670: 4657: 4640: 4636: 4626: 4617: 4608: 4591: 4587: 4560:. Retrieved 4551: 4542: 4522: 4515: 4488: 4484: 4460:. Retrieved 4451: 4210: 4187: 4178: 4169: 4167: 4153: 3989:Dirac spinor 3972: 3790: 3066: 3062: 3060: 2901: 2879: 2876: 2712: 2527: 2518: 2441:is given by 2391: 2226:is given by 2200: 2188: 2166: 2149: 2063: 2056: 2012: 1926: 1923: 1896: 1882: 1853: 1833: 1830: 1825:antiparallel 1823: 1815: 1810: 1808:. Note that 1708: 1637: 1591: 1588: 1501: 1245:form factor 1015: 525:form factors 522: 511:in units of 500:in units of 495: 410: 318: 308: 295: 211: 205: 199: 140: 118: 96: 70: 50: 46: 40: 4184:Measurement 4170:irreducible 3793:rest energy 3083:4-potential 2757:Hamiltonian 1914:10 J⋅T 177:produces a 89:10 J⋅T 4886:Categories 4760:(4): 412. 4562:2024-05-18 4558:. May 2024 4498:2209.13084 4462:2024-05-18 4458:. May 2024 4432:References 4174:antimatter 3228:(known as 3075:relativity 2926:) are the 2530:Otto Stern 2057:The total 1688:particle ( 496:Since the 183:bar magnet 117:(13)  4719:119331138 4694:1008.4828 4352:¯ 4349:ν 4332:¯ 4329:ν 4310:¯ 4307:ν 4262:ν 4239:ν 4217:cyclotron 4206:deuterium 4134:ψ 4130:ϕ 4115:ψ 4080:− 4067:⋅ 4063:σ 4029:ψ 4007:− 3953:ψ 3929:− 3916:⋅ 3912:σ 3890:≈ 3885:− 3881:ψ 3850:≈ 3823:≈ 3816:ϕ 3810:− 3771:− 3767:ψ 3737:ψ 3713:− 3700:⋅ 3696:σ 3684:− 3680:ψ 3673:ϕ 3667:− 3658:− 3645:ψ 3619:− 3615:ψ 3591:− 3578:⋅ 3574:σ 3567:− 3558:ψ 3551:ϕ 3545:− 3473:− 3469:ψ 3455:ψ 3430:ϕ 3424:− 3375:− 3362:⋅ 3358:σ 3351:− 3324:− 3311:⋅ 3308:σ 3297:ϕ 3285:− 3210:μ 3206:γ 3179:ψ 3158:μ 3139:μ 3135:∂ 3124:μ 3120:γ 3113:− 3039:⋅ 3035:σ 3017:ℏ 3008:− 3005:ϕ 2970:− 2860:ϕ 2820:− 2807:⋅ 2803:σ 2495:ℓ 2481:μ 2477:− 2454:μ 2418:azimuthal 2414:principal 2364:ℓ 2358:ℓ 2347:μ 2343:− 2337:⟩ 2326:ℓ 2316:Ψ 2291:ℓ 2281:Ψ 2277:⟨ 2272:ℏ 2263:μ 2247:− 2235:μ 2205:atom, an 2130:ℏ 2105:μ 2090:− 2077:μ 1993:ℏ 1968:μ 1953:− 1940:μ 1831:The spin 1764:μ 1749:− 1726:μ 1663:≈ 1620:≈ 1569:ℏ 1544:μ 1529:− 1516:μ 1390:− 1298:μ 1275:− 1198:μ 1185:− 1180:μ 1162:μ 1115:¯ 1066:¯ 946:γ 935:μ 931:γ 905:− 900:μ 827:ν 817:σ 814:ρ 810:σ 804:σ 801:ρ 798:ν 795:μ 791:ϵ 753:ν 715:ν 712:μ 708:σ 690:μ 686:γ 632:¯ 620:⟩ 600:μ 577:⟨ 476:ℏ 459:μ 444:− 437:μ 357:− 333:μ 289:rest mass 234:− 224:μ 189:exerts a 102:), it is 53:, is the 4873:(1997). 4859:(1975). 4832:Archived 4828:17820251 4770:Archived 4729:26 April 4378:See also 3224:are the 2715:e < 0 2422:magnetic 2412:are the 2207:electron 2203:hydrogen 1816:negative 1645:because 418:and the 286:electron 149:, where 59:electron 4838:2 April 4808:Bibcode 4776:2 April 4699:Bibcode 4228:-factor 4202:protium 3980:⁄ 3236:is the 2883:is the 2746:⁄ 2515:History 2191:-factor 2169:-factor 2155:-factor 2034:is the 2025:-factor 1859:-factor 1836:-factor 1804:is the 1700:⁄ 1683:⁄ 1600:-factor 322:-factor 306:factor 284:is the 169:. From 153:is the 4826:  4717:  4530:  3232:) and 3197:where 2899:, and 2731:silver 2420:, and 2408:, and 2222:, the 2220:  2201:For a 2187:Landé 2165:Landé 2126:  2118:  1989:  1981:  1903:−9.284 1865:−2.002 1797:where 1565:  1557:  1149:, and 884:  867:  742:  725:  720:  701:  384:  368:  291:. The 277:where 191:torque 157:. Its 104:−1.001 78:−9.284 57:of an 45:, the 4715:S2CID 4689:arXiv 4594:(2). 4493:arXiv 3100:= 1) 3077:into 2877:Here 2753:Pauli 2392:Here 2218:n,ℓ,m 2013:Here 1814:is a 1589:Here 76:) is 4840:2015 4824:PMID 4778:2015 4731:2012 4556:NIST 4528:ISBN 4456:NIST 4219:and 4211:The 4204:and 3071:spin 2891:the 2887:and 2719:spin 2707:and 2178:and 2150:The 2027:and 1910:(29) 1908:6917 1878:(36) 1820:spin 1709:The 1502:The 1052:and 165:and 163:spin 85:(29) 83:6917 65:and 63:spin 34:and 4816:doi 4762:doi 4707:doi 4645:doi 4641:187 4596:doi 4592:192 4503:doi 4489:130 3527:so 2905:= ( 1905:764 1873:360 1870:304 1867:319 1845:= 2 1706:): 127:1.3 112:180 109:652 106:159 80:764 41:In 4888:: 4830:. 4822:. 4814:. 4804:74 4802:. 4798:. 4768:. 4758:73 4756:. 4752:. 4713:. 4705:. 4697:. 4685:52 4683:. 4679:. 4639:. 4635:. 4590:. 4586:. 4571:^ 4554:. 4550:. 4501:. 4487:. 4483:. 4471:^ 4454:. 4450:. 4439:^ 4230:. 3096:= 2919:, 2912:, 2751:. 2416:, 2404:, 2400:, 2049:. 1876:92 1693:= 1494:. 515:. 428:: 324:: 133:. 131:10 115:59 4842:. 4818:: 4810:: 4780:. 4764:: 4733:. 4709:: 4701:: 4691:: 4651:. 4647:: 4602:. 4598:: 4565:. 4536:. 4509:. 4505:: 4495:: 4465:. 4359:c 4339:a 4322:+ 4317:c 4297:= 4292:2 4289:g 4266:c 4256:2 4253:g 4248:= 4243:s 4226:g 4162:i 4138:+ 4127:e 4124:+ 4119:+ 4109:2 4104:] 4099:) 4094:A 4088:c 4085:e 4076:p 4071:( 4058:[ 4050:m 4047:2 4043:1 4038:= 4033:+ 4024:) 4018:2 4014:c 4010:m 4004:E 4000:( 3983:c 3977:v 3957:+ 3948:) 3943:A 3937:c 3934:e 3925:p 3920:( 3905:c 3902:m 3899:2 3895:1 3856:v 3853:m 3843:p 3834:2 3830:c 3826:m 3813:e 3807:E 3761:2 3757:c 3753:m 3750:= 3741:+ 3732:) 3727:A 3721:c 3718:e 3709:p 3704:( 3692:c 3689:+ 3676:) 3670:e 3664:E 3661:( 3649:+ 3639:2 3635:c 3631:m 3628:= 3610:) 3605:A 3599:c 3596:e 3587:p 3582:( 3570:c 3562:+ 3554:) 3548:e 3542:E 3539:( 3515:. 3510:) 3504:0 3497:0 3491:( 3486:= 3481:) 3459:+ 3448:( 3441:) 3434:) 3427:e 3421:E 3418:+ 3413:2 3409:c 3405:m 3401:( 3394:) 3389:A 3383:c 3380:e 3371:p 3366:( 3354:c 3343:) 3338:A 3332:c 3329:e 3320:p 3315:( 3305:c 3300:) 3294:e 3291:+ 3288:E 3280:2 3276:c 3272:m 3269:( 3263:( 3246:i 3234:i 3185:0 3182:= 3175:] 3171:m 3168:+ 3164:) 3154:A 3150:e 3147:i 3144:+ 3130:( 3116:i 3109:[ 3098:c 3094:ħ 3047:. 3043:B 3028:c 3025:m 3022:2 3014:e 3002:e 2999:+ 2994:2 2989:) 2984:A 2978:c 2975:e 2966:p 2961:( 2953:m 2950:2 2946:1 2941:= 2938:H 2924:z 2921:σ 2917:y 2914:σ 2910:x 2907:σ 2902:σ 2889:ϕ 2880:A 2863:. 2857:e 2854:+ 2849:2 2844:] 2839:) 2834:A 2828:c 2825:e 2816:p 2811:( 2798:[ 2790:m 2787:2 2783:1 2778:= 2775:H 2748:2 2744:1 2739:z 2736:L 2727:N 2673:2 2669:n 2665:2 2645:) 2640:2 2636:4 2632:+ 2627:2 2623:3 2619:+ 2614:2 2610:3 2606:+ 2601:2 2597:2 2593:+ 2588:2 2584:2 2580:+ 2577:1 2574:( 2571:2 2568:= 2565:N 2500:. 2491:m 2485:B 2474:= 2469:z 2465:) 2459:L 2449:( 2439:ℓ 2436:m 2429:z 2410:m 2406:ℓ 2402:n 2394:L 2378:. 2373:) 2370:1 2367:+ 2361:( 2351:B 2340:= 2332:m 2329:, 2323:, 2320:n 2311:| 2307:L 2303:| 2297:m 2294:, 2288:, 2285:n 2267:B 2255:L 2251:g 2244:= 2239:L 2214:Ψ 2189:g 2183:S 2180:g 2176:L 2173:g 2167:g 2161:J 2158:g 2153:g 2136:. 2122:J 2109:B 2098:J 2094:g 2087:= 2082:J 2064:J 2043:L 2040:g 2032:B 2029:μ 2023:g 2018:L 2015:g 1999:. 1985:L 1972:B 1961:L 1957:g 1950:= 1945:L 1927:L 1916:. 1912:× 1897:g 1880:. 1857:g 1843:s 1840:g 1834:g 1811:μ 1802:s 1799:m 1785:, 1779:s 1775:m 1768:B 1757:s 1753:g 1746:= 1741:z 1737:) 1731:s 1721:( 1711:z 1702:2 1697:ħ 1691:S 1685:2 1681:1 1666:2 1658:s 1654:g 1643:B 1640:μ 1623:2 1615:s 1611:g 1598:g 1592:S 1575:. 1561:S 1548:B 1537:s 1533:g 1526:= 1521:s 1478:) 1473:2 1469:q 1465:( 1460:4 1456:F 1431:) 1428:0 1425:( 1420:3 1416:F 1407:e 1403:m 1399:2 1395:1 1370:) 1367:) 1364:0 1361:( 1356:2 1352:F 1348:+ 1345:) 1342:0 1339:( 1334:1 1330:F 1326:( 1318:e 1314:m 1310:2 1306:1 1301:= 1278:e 1272:= 1269:) 1266:0 1263:( 1258:1 1254:F 1233:0 1230:= 1225:2 1221:q 1193:i 1189:p 1175:f 1171:p 1167:= 1158:q 1135:e 1131:m 1127:2 1124:= 1121:u 1112:u 1085:) 1080:f 1076:p 1072:( 1063:u 1040:) 1035:i 1031:p 1027:( 1024:u 1002:) 997:i 993:p 989:( 986:u 982:] 978:) 973:2 969:q 965:( 960:4 956:F 950:5 941:) 924:m 921:2 915:2 911:q 896:q 891:( 879:e 875:m 870:2 863:1 858:+ 855:) 850:2 846:q 842:( 837:3 833:F 823:q 787:i 784:+ 781:) 776:2 772:q 768:( 763:2 759:F 749:q 737:e 733:m 728:2 704:i 695:+ 682:) 677:2 673:q 669:( 664:1 660:F 655:[ 651:) 646:f 642:p 638:( 629:u 623:= 615:i 611:p 606:| 596:j 591:| 585:f 581:p 557:) 552:2 548:q 544:( 539:i 535:F 513:ħ 505:B 502:μ 482:. 472:L 463:B 452:e 448:g 441:= 426:B 423:μ 416:ħ 397:. 392:L 379:e 375:m 371:2 363:) 360:e 354:( 345:e 341:g 337:= 319:g 312:e 309:g 296:L 282:e 279:m 265:, 260:L 250:e 246:m 242:2 237:e 228:= 212:μ 206:L 151:e 147:e 129:× 122:B 119:μ 100:B 97:μ 95:( 87:× 74:e 71:μ 38:. 20:)

Index

Electron spin
Electron spin resonance
Spin (physics)
atomic physics
magnetic moment
electron
spin
electric charge
Bohr magneton
charged particle
unit of elementary charge
angular momentum
spin
orbital motion
classical electrodynamics
electric charge
magnetic dipole
bar magnet
magnetic field
torque
magnetic moment
angular momentum
electron
rest mass
angular momentum
spin magnetic moment
dimensionless
g-factor
reduced Planck constant
Bohr magneton

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