Referenced Items are not available for this document.
Single-photon resolution (SPR) detectors can tell the difference between incoming wave packets of n and n+1 photons. Such devices are especially important for linear optical quantum computing with projective measurements. However, in this paper, I show that it is impossible to construct a photodetector with single-photon resolution when we are restricted to single-photon sources, linear optical elements, and projective measurements with standard (nonphoton-number discriminating) photodetectors. These devices include SPR detectors that sometimes fail to distinguish one- and two-photon inputs, but at the same time indicate this failure. PACS numbers: 42.79.Ta, 03.67.Hk, 42.79.Gn.
Published in:
Selected Topics in Quantum Electronics, IEEE Journal of
(Volume:9
,
Issue:
6
)
Date of Publication: Nov.-Dec. 2003
- Page(s):
- 1498 - 1501
- ISSN :
- 1077-260X
- INSPEC Accession Number:
- 7908218
- Digital Object Identifier :
- 10.1109/JSTQE.2003.820909
- Product Type:
- Journals & Magazines
- Date of Current Version :
- 06 February 2004
- Issue Date :
- Nov.-Dec. 2003
- Sponsored by :
- IEEE Photonics Society
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