31:
228:
Now, the same photon is moving through two different parts of the device. The photon that passed through the mirror is now on the "lower path". It may or may not encounter a bomb, which is designed to explode if it encounters a single photon. The photon that was reflected off the mirror is now on
220:
The bomb tester works by employing an interferometer. When a photon is fired into the device, it encounters a half-silvered mirror positioned so as reflect the photon at a ninety-degree angle. There is a 50-50 chance it will be reflected or pass through. Due to the
213:(IFM). IFM is the detection of the property of an object or its presence without any physical interaction between the observer and the object. Obtaining information from an object in such a manner is
263:
detector encounters the photon, then the photon "actually" took the upper path and no measurement was made of whether or not there was a bomb on the lower path. If, however, the
195:. Vaidman emigrated with his family to Israel at the age of 18. Prior to that, he studied for one year at Saint Petersburg University (then Leningrad University).
171:
from 2007 to 2009. In 2010, the
Elitzur–Vaidman bomb tester was chosen as one of the "Seven Wonders of the Quantum World" by New Scientist Magazine.
545:
294:. He has demonstrated that non-local measurements can be used to teleport unknown quantum states of systems with continuous variables.
565:
313:
498:
The
Stanford Online Encyclopedia of Philosophy entry on the Many-Worlds Interpretation of Quantum Mechanics, by Lev Vaidman
550:
575:
267:
detector encounters a photon, it can be determined that fifty percent of the time, there is a bomb on the lower path--
420:
308:
249:
204:
191:(first place in 1971 and second place in 1972), and in 1972 scored 26th in the International Physics Olympiad in
180:
157:
93:
68:
72:
318:
210:
356:
259:
and the photon is observed to have either been on the upper path or the lower path, but not both. If the
570:
540:
167:
343:
323:
275:
244:
photon did not detect a bomb, it will arrive at a second half-silvered mirror at the same time as the
408:
255:
A pair of detectors are positioned beyond the mirror in such a way that the photon's superposition
535:
256:
555:
291:
222:
153:
560:
530:
492:
237:
photon is reflected back ninety degrees so that it is returned to its original trajectory.
8:
381:"Interview: Testing Bombs, Splitting Worlds and Saving Israel with Professor Lev Vaidman"
145:
125:
114:
88:
470:
279:
149:
83:
456:
497:
303:
188:
184:
233:
photon is reflected ninety-degrees upward (if it did not detect a bomb). The
148:, Israel. He is noted for his theoretical work in the area of fundamentals of
524:
225:
of the photon, it both passes through the mirror and is reflected off of it.
209:
This thought experiment, subsequently conducted in the lab, is an example of
397:
507:
57:
444:
368:
514:
424:
187:
and was twice among the winners of the All-Soviet high school students
161:
229:
the "upper path". Both photons next encounter a normal mirror. The
192:
141:
53:
487:
214:
110:
380:
30:
472:
Experimental and
Theoretical Aspects of Quantum Teleporation
285:
164:. He was a member of the Editorial Advisory Board of
458:
342:
The
American Association of Physics Teachers (2009),
274:Vaidman has argued that this lends support to the
198:
522:
373:
248:photon. This will result in the single photon
140:(born 4 September 1955) is a Russian-Israeli
445:Международные олимпиады школьников по физике
523:
398:Подтверждая и опровергая тезисы Лемана
546:Academic staff of Tel Aviv University
286:Teleportation of continuous variables
314:Englert–Greenberger duality relation
290:Vaidman is a pioneer in the area of
13:
409:VI Всесоюзная физическая олимпиада
357:Seven wonders of the quantum world
14:
587:
481:
421:"Физические олимпиады школьников"
369:V Всесоюзная физическая олимпиада
566:Scientists from Saint Petersburg
269:without actually encountering it
174:
29:
504:Teleportation of Quantum States
469:Zhang, L., Barhen, J., Liu H.,
463:
199:The Elitzur–Vaidman bomb tester
181:45th Physics-Mathematics School
513:, 1473-1476 (1994). Pre-print
449:
438:
413:
402:
391:
362:
350:
336:
69:Hebrew University of Jerusalem
1:
329:
73:Weizmann Institute of Science
319:Interaction-free measurement
211:interaction-free measurement
7:
309:Elitzur–Vaidman bomb tester
297:
205:Elitzur–Vaidman bomb tester
168:American Journal of Physics
158:Elitzur–Vaidman bomb tester
94:Elitzur–Vaidman bomb-tester
10:
592:
551:Soviet emigrants to Israel
324:Many-worlds interpretation
276:many-worlds interpretation
202:
576:Jewish Russian physicists
131:
121:
106:
99:
78:
64:
37:
28:
21:
16:Russian-Israeli physicist
517:, submitted 14 May 1993
488:Lev Vaidman's homepage
292:quantum teleportation
154:quantum teleportation
515:arXiv:hep-th/9305062
455:Vaidman, L. (1994),
146:Tel Aviv University
126:Tel Aviv University
89:quantum information
571:Quantum physicists
541:Israeli physicists
359:, newscientist.com
223:quantum properties
493:Publications list
280:quantum mechanics
152:, which includes
150:quantum mechanics
144:and Professor at
135:
134:
101:Scientific career
84:quantum mechanics
583:
475:
467:
461:
453:
447:
442:
436:
435:
433:
432:
423:. Archived from
417:
411:
406:
400:
395:
389:
388:
377:
371:
366:
360:
354:
348:
340:
304:Avshalom Elitzur
189:Physics Olympiad
185:Saint Petersburg
48:4 September 1955
47:
45:
33:
19:
18:
591:
590:
586:
585:
584:
582:
581:
580:
521:
520:
484:
479:
478:
468:
464:
454:
450:
443:
439:
430:
428:
419:
418:
414:
407:
403:
396:
392:
387:. 24 July 2012.
379:
378:
374:
367:
363:
355:
351:
341:
337:
332:
300:
288:
207:
201:
177:
92:
86:
71:
65:Alma mater
60:
51:
49:
43:
41:
24:
17:
12:
11:
5:
589:
579:
578:
573:
568:
563:
558:
553:
548:
543:
538:
533:
519:
518:
500:
495:
490:
483:
482:External links
480:
477:
476:
462:
448:
437:
412:
401:
390:
372:
361:
349:
334:
333:
331:
328:
327:
326:
321:
316:
311:
306:
299:
296:
287:
284:
203:Main article:
200:
197:
176:
173:
133:
132:
129:
128:
123:
119:
118:
108:
104:
103:
97:
96:
80:
79:Known for
76:
75:
66:
62:
61:
52:
39:
35:
34:
26:
25:
22:
15:
9:
6:
4:
3:
2:
588:
577:
574:
572:
569:
567:
564:
562:
559:
557:
554:
552:
549:
547:
544:
542:
539:
537:
536:Living people
534:
532:
529:
528:
526:
516:
512:
509:
505:
502:Lev Vaidman,
501:
499:
496:
494:
491:
489:
486:
485:
474:
473:
466:
460:
459:
452:
446:
441:
427:on 2016-12-20
426:
422:
416:
410:
405:
399:
394:
386:
382:
376:
370:
365:
358:
353:
347:
346:
345:Annual Report
339:
335:
325:
322:
320:
317:
315:
312:
310:
307:
305:
302:
301:
295:
293:
283:
281:
277:
272:
270:
266:
262:
258:
253:
252:with itself.
251:
247:
243:
238:
236:
232:
226:
224:
218:
216:
212:
206:
196:
194:
190:
186:
182:
175:Personal life
172:
170:
169:
163:
159:
155:
151:
147:
143:
139:
130:
127:
124:
120:
116:
112:
109:
105:
102:
98:
95:
90:
85:
81:
77:
74:
70:
67:
63:
59:
55:
40:
36:
32:
27:
20:
556:Israeli Jews
510:
508:Phys. Rev. A
503:
471:
465:
457:
451:
440:
429:. Retrieved
425:the original
415:
404:
393:
384:
375:
364:
352:
344:
338:
289:
273:
268:
264:
260:
254:
245:
241:
239:
234:
230:
227:
219:
208:
179:He attended
178:
165:
137:
136:
122:Institutions
100:
82:Research of
58:Soviet Union
561:Soviet Jews
531:1955 births
250:interfering
215:paradoxical
162:weak values
138:Lev Vaidman
115:theoretical
23:Lev Vaidman
525:Categories
431:2016-12-10
385:Joe Hubris
330:References
265:lower-path
261:upper-path
246:upper-path
242:lower-path
235:upper-path
231:lower-path
160:, and the
44:1955-09-04
257:collapses
193:Bucharest
142:physicist
54:Leningrad
298:See also
50:(age 67)
240:If the
111:Physics
156:, the
107:Fields
166:The
87:and
38:Born
278:of
183:in
527::
511:49
506:,
383:.
282:.
271:.
217:.
56:,
434:.
117:)
113:(
91:,
46:)
42:(
Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.
