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Volumn 90, Issue 17, 2003, Pages

Ascertaining the values of σx, σy, and σz of a polarization qubit

Author keywords

[No Author keywords available]

Indexed keywords

NUMERICAL METHODS; PHOTONS; PROBABILITY; QUANTUM CRYPTOGRAPHY; QUANTUM OPTICS;

EID: 4243367098     PISSN: 00319007     EISSN: None     Source Type: Journal    
DOI: None     Document Type: Article
Times cited : (19)

References (15)
  • 4
    • 0038528280 scopus 로고    scopus 로고
    • note
    • -1/2), for example, which corresponds to the situation described in the text.
  • 8
    • 0037851882 scopus 로고    scopus 로고
    • note
    • In the proposal of [7] the von Neumann measurement is mimicked by following the destructive photodetection with a suitable unitary polarization change on another photon. An experiment along these lines would require very fast switches and, therefore, we modified the scheme and replaced measurements by projections. See also [9].
  • 9
    • 0037851886 scopus 로고    scopus 로고
    • note
    • Only 50% of the incoming photons are detected during the gate time. This can be avoided by replacing the first BS of the third stage by a polarization insensitive, quickly switchable mirror. While such a device is conceptually possible, one would lose efficiency and signal-to-noise ratio with present-day technology.
  • 10
    • 0037851885 scopus 로고    scopus 로고
    • note
    • Bob's projection is successful in 50% of the cases. With perfect detectors, he would note that his preparation failed upon registering the photon reflected from his PBS.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.