When Photons Are Lying about Where They Have Been

Vaidman, Lev; Tsutsui, Izumi

doi:10.3390/e20070538

Cited by 22 publications

(21 citation statements)

References 53 publications

(77 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…4. The Gaussian state (14) prepared for the meter is exact. This implies that our approximation uncertainty is just the difference between the results obtained by the linear approximation in the coupling constant and that of the full computation available for the Gaussian state.…”

Section: Conclusion and Discussionmentioning

confidence: 99%

“…with some unitary operator V 0 . Another case may be that the Gaussian profile (14) is realized at t = 0 by the state |χ with properly chosen |χ 0 and V 0 . In any case, when the condition (10) is fulfilled for |χ , we still maintain the formula of shift (11).…”

Section: B Weak Measurementmentioning

confidence: 99%

“…(55) In this experiment, the meter state |χ 0 ∈ K is prepared by the Gaussian state x|χ 0 = G(x) given by (14). To find the time development of the meter state, we employ the paraxial approximation with the effect of the lens being taken into account, in which the unitary operator V 0 needed to obtain the meter state |χ reads (see Appendix E)…”

Section: Setup and Goal Of The Experimentsmentioning

confidence: 99%

“…again with K = L 2 (R). The initial state χ(x) of the meter system is obtained by taking account of the propagation effect and the lens effect during the passage from Lens 1, where we prepare the Gaussian state x|χ 0 = G(x) in (14), to the prism. This is done, as in the previous case (56), by applying the unitary operator,…”

Section: Setup and Goal Of The Experimentsmentioning

confidence: 99%

See 3 more Smart Citations

On the validity of weak measurement applied for precision measurement

Mori

Lee

Tsutsui

2019

J. Phys. B: At. Mol. Opt. Phys.

Self Cite

View full text Add to dashboard Cite

We present a general framework of examining the validity of weak measurement -the standard procedure to acquire Aharonov's weak value -which has been used intensively in recent years for precision measurement, taking advantage of the amplification mechanism available for the weak value. Our framework allows one to deal systematically with various causes of uncertainties intrinsic to the actual measurement process as well as those found in the theoretical analysis employed to describe the system. Using our framework, we examine in detail the two seminal experiments, Hosten's detection measurement of the spin Hall effect of light [1] and Dixon's ultra sensitive beam deflection measurement [2]. Our analysis shows that their results are well within the range of amplification (actually in the vicinity of the optimal point) where the weak measurements are valid. This suggests that our framework is both practical and sound, and may be useful to determine beforehand the possible extent of amplification in the future weak measurement experiments.

show abstract

Section: Conclusion and Discussionmentioning

confidence: 99%

Section: B Weak Measurementmentioning

confidence: 99%

Section: Setup and Goal Of The Experimentsmentioning

confidence: 99%

Section: Setup and Goal Of The Experimentsmentioning

confidence: 99%

See 2 more Smart Citations

On the validity of weak measurement applied for precision measurement

Mori

Lee

Tsutsui

2019

J. Phys. B: At. Mol. Opt. Phys.

Self Cite

View full text Add to dashboard Cite

show abstract

“…Any such inference involves multiple untested assumptions about what happened prior to detection [128, § 3]. Recent experiments reveal possible evidence of aspects of a system's past, but there is not consensus on the meaning of the results [257,312].…”

Section: Experiments Thought Experiments and Other Analyses 51 The mentioning

confidence: 99%

Understanding quantum mechanics: a review and synthesis in precise language

Drummond¹

2019

Open Physics

View full text Add to dashboard Cite

This review, of the understanding of quantum mechanics, is broad in scope, and aims to reflect enough of the literature to be representative of the current state of the subject. To enhance clarity, the main findings are presented in the form of a coherent synthesis of the reviewed sources. The review highlights core characteristics of quantum mechanics. One is statistical balance in the collective response of an ensemble of identically prepared systems, to differing measurement types. Another is that states are mathematical terms prescribing probability aspects of future events, relating to an ensemble of systems, in various situations. These characteristics then yield helpful insights on entanglement, measurement, and widely-discussed experiments and analyses. The review concludes by considering how these insights are supported, illustrated and developed by some specific approaches to understanding quantum mechanics. The review uses non-mathematical language precisely (terms defined) and rigorously (consistent meanings), and uses only such language. A theory more descriptive of independent reality than is quantum mechanics may yet be possible. One step in the pursuit of such a theory is to reach greater consensus on how to understand quantum mechanics. This review aims to contribute to achieving that greater consensus, and so to that pursuit.

show abstract