TY - JOUR
T1 - Comment on "one-state vector formalism for the evolution of a quantum state through nested Mach-Zehnder interferometers"
AU - Vaidman, L.
N1 - Publisher Copyright:
© 2016 American Physical Society.
PY - 2016/3/31
Y1 - 2016/3/31
N2 - Bartkiewicz et al. [2aaPhys. Rev. A 91, 012103 (2015)PLRAAN1050-294710.1103/PhysRevA.91.012103] provided an alternative analysis of an experiment performed by Danan et al. [1abPhys. Rev. Lett. 111, 240402 (2013)PRLTAO0031-900710.1103/PhysRevLett.111.240402] which presented surprising evidence regarding the past of photons passing through an interferometer. They argued that the quantity used by Danan et al. is not a suitable which-path witness, and proposed an alternative. The weaknesses of the analysis are discussed, and it is argued that the alternative, analyzed properly, provides no new predictions.
AB - Bartkiewicz et al. [2aaPhys. Rev. A 91, 012103 (2015)PLRAAN1050-294710.1103/PhysRevA.91.012103] provided an alternative analysis of an experiment performed by Danan et al. [1abPhys. Rev. Lett. 111, 240402 (2013)PRLTAO0031-900710.1103/PhysRevLett.111.240402] which presented surprising evidence regarding the past of photons passing through an interferometer. They argued that the quantity used by Danan et al. is not a suitable which-path witness, and proposed an alternative. The weaknesses of the analysis are discussed, and it is argued that the alternative, analyzed properly, provides no new predictions.
UR - http://www.scopus.com/inward/record.url?scp=84963684437&partnerID=8YFLogxK
U2 - 10.1103/PhysRevA.93.036103
DO - 10.1103/PhysRevA.93.036103
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AN - SCOPUS:84963684437
SN - 2469-9926
VL - 93
JO - Physical Review A
JF - Physical Review A
IS - 3
M1 - 036103
ER -