42:
239:
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
231:
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
224:(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
274:
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
206:. 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).
182:
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.
556:
305:. He has demonstrated that non-local measurements can be used to teleport unknown quantum states of systems with continuous variables.
576:
324:
509:
The
Stanford Online Encyclopedia of Philosophy entry on the Many-Worlds Interpretation of Quantum Mechanics, by Lev Vaidman
561:
586:
278:
detector encounters a photon, it can be determined that fifty percent of the time, there is a bomb on the lower path--
431:
319:
260:
215:
202:(first place in 1971 and second place in 1972), and in 1972 scored 26th in the International Physics Olympiad in
191:
168:
104:
79:
83:
329:
221:
367:
270:
and the photon is observed to have either been on the upper path or the lower path, but not both. If the
581:
551:
178:
354:
334:
286:
255:
photon did not detect a bomb, it will arrive at a second half-silvered mirror at the same time as the
419:
266:
A pair of detectors are positioned beyond the mirror in such a way that the photon's superposition
17:
546:
267:
566:
302:
233:
164:
571:
541:
503:
248:
photon is reflected back ninety degrees so that it is returned to its original trajectory.
8:
392:"Interview: Testing Bombs, Splitting Worlds and Saving Israel with Professor Lev Vaidman"
156:
136:
125:
99:
481:
290:
160:
94:
467:
508:
314:
199:
195:
244:
photon is reflected ninety-degrees upward (if it did not detect a bomb). The
159:, Israel. He is noted for his theoretical work in the area of fundamentals of
535:
236:
of the photon, it both passes through the mirror and is reflected off of it.
220:
This thought experiment, subsequently conducted in the lab, is an example of
408:
518:
68:
455:
379:
525:
435:
198:
and was twice among the winners of the All-Soviet high school students
172:
240:
the "upper path". Both photons next encounter a normal mirror. The
203:
152:
64:
498:
225:
121:
391:
41:
483:
Experimental and
Theoretical Aspects of Quantum Teleporation
296:
175:. He was a member of the Editorial Advisory Board of
469:
353:
The
American Association of Physics Teachers (2009),
285:Vaidman has argued that this lends support to the
209:
533:
384:
259:photon. This will result in the single photon
151:(born 4 September 1955) is a Russian-Israeli
456:Международные олимпиады школьников по физике
14:
534:
409:Подтверждая и опровергая тезисы Лемана
557:Academic staff of Tel Aviv University
297:Teleportation of continuous variables
325:Englert–Greenberger duality relation
301:Vaidman is a pioneer in the area of
24:
420:VI Всесоюзная физическая олимпиада
368:Seven wonders of the quantum world
25:
598:
492:
432:"Физические олимпиады школьников"
380:V Всесоюзная физическая олимпиада
577:Scientists from Saint Petersburg
280:without actually encountering it
185:
40:
515:Teleportation of Quantum States
480:Zhang, L., Barhen, J., Liu H.,
474:
210:The Elitzur–Vaidman bomb tester
192:45th Physics-Mathematics School
524:, 1473-1476 (1994). Pre-print
460:
449:
424:
413:
402:
373:
361:
347:
80:Hebrew University of Jerusalem
13:
1:
340:
84:Weizmann Institute of Science
330:Interaction-free measurement
222:interaction-free measurement
7:
320:Elitzur–Vaidman bomb tester
308:
216:Elitzur–Vaidman bomb tester
179:American Journal of Physics
169:Elitzur–Vaidman bomb tester
105:Elitzur–Vaidman bomb-tester
10:
603:
562:Soviet emigrants to Israel
335:Many-worlds interpretation
287:many-worlds interpretation
213:
587:Jewish Russian physicists
142:
132:
117:
110:
89:
75:
48:
39:
32:
27:Russian-Israeli physicist
528:, submitted 14 May 1993
499:Lev Vaidman's homepage
303:quantum teleportation
165:quantum teleportation
526:arXiv:hep-th/9305062
466:Vaidman, L. (1994),
157:Tel Aviv University
137:Tel Aviv University
100:quantum information
582:Quantum physicists
552:Israeli physicists
370:, newscientist.com
234:quantum properties
504:Publications list
291:quantum mechanics
163:, which includes
161:quantum mechanics
155:and Professor at
146:
145:
112:Scientific career
95:quantum mechanics
16:(Redirected from
594:
486:
478:
472:
464:
458:
453:
447:
446:
444:
443:
434:. Archived from
428:
422:
417:
411:
406:
400:
399:
388:
382:
377:
371:
365:
359:
351:
315:Avshalom Elitzur
200:Physics Olympiad
196:Saint Petersburg
59:4 September 1955
58:
56:
44:
30:
29:
21:
602:
601:
597:
596:
595:
593:
592:
591:
532:
531:
495:
490:
489:
479:
475:
465:
461:
454:
450:
441:
439:
430:
429:
425:
418:
414:
407:
403:
398:. 24 July 2012.
390:
389:
385:
378:
374:
366:
362:
352:
348:
343:
311:
299:
218:
212:
188:
103:
97:
82:
76:Alma mater
71:
62:
60:
54:
52:
35:
28:
23:
22:
15:
12:
11:
5:
600:
590:
589:
584:
579:
574:
569:
564:
559:
554:
549:
544:
530:
529:
511:
506:
501:
494:
493:External links
491:
488:
487:
473:
459:
448:
423:
412:
401:
383:
372:
360:
345:
344:
342:
339:
338:
337:
332:
327:
322:
317:
310:
307:
298:
295:
214:Main article:
211:
208:
187:
184:
144:
143:
140:
139:
134:
130:
129:
119:
115:
114:
108:
107:
91:
90:Known for
87:
86:
77:
73:
72:
63:
50:
46:
45:
37:
36:
33:
26:
9:
6:
4:
3:
2:
599:
588:
585:
583:
580:
578:
575:
573:
570:
568:
565:
563:
560:
558:
555:
553:
550:
548:
547:Living people
545:
543:
540:
539:
537:
527:
523:
520:
516:
513:Lev Vaidman,
512:
510:
507:
505:
502:
500:
497:
496:
485:
484:
477:
471:
470:
463:
457:
452:
438:on 2016-12-20
437:
433:
427:
421:
416:
410:
405:
397:
393:
387:
381:
376:
369:
364:
358:
357:
356:Annual Report
350:
346:
336:
333:
331:
328:
326:
323:
321:
318:
316:
313:
312:
306:
304:
294:
292:
288:
283:
281:
277:
273:
269:
264:
263:with itself.
262:
258:
254:
249:
247:
243:
237:
235:
229:
227:
223:
217:
207:
205:
201:
197:
193:
186:Personal life
183:
181:
180:
174:
170:
166:
162:
158:
154:
150:
141:
138:
135:
131:
127:
123:
120:
116:
113:
109:
106:
101:
96:
92:
88:
85:
81:
78:
74:
70:
66:
51:
47:
43:
38:
31:
19:
567:Israeli Jews
521:
519:Phys. Rev. A
514:
482:
476:
468:
462:
451:
440:. Retrieved
436:the original
426:
415:
404:
395:
386:
375:
363:
355:
349:
300:
284:
279:
275:
271:
265:
256:
252:
250:
245:
241:
238:
230:
219:
190:He attended
189:
176:
148:
147:
133:Institutions
111:
93:Research of
69:Soviet Union
572:Soviet Jews
542:1955 births
261:interfering
226:paradoxical
173:weak values
149:Lev Vaidman
126:theoretical
34:Lev Vaidman
536:Categories
442:2016-12-10
396:Joe Hubris
341:References
276:lower-path
272:upper-path
257:upper-path
253:lower-path
246:upper-path
242:lower-path
171:, and the
55:1955-09-04
268:collapses
204:Bucharest
153:physicist
65:Leningrad
309:See also
61:(age 67)
251:If the
122:Physics
18:Vaidman
167:, the
118:Fields
177:The
98:and
49:Born
289:of
194:in
538::
522:49
517:,
394:.
293:.
282:.
228:.
67:,
445:.
128:)
124:(
102:,
57:)
53:(
20:)
Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.
