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Volumn 69, Issue 5 A, 2004, Pages

Implementation of generalized quantum measurements: Superadditive quantum coding, accessible information extraction, and classical capacity limit

Author keywords

[No Author keywords available]

Indexed keywords

APPROXIMATION THEORY; COMMUNICATION CHANNELS (INFORMATION THEORY); COMPUTATIONAL METHODS; DATA COMMUNICATION SYSTEMS; DECODING; ERROR CORRECTION; MATRIX ALGEBRA; OPTICAL LINKS; PROBABILITY DISTRIBUTIONS; SIGNAL ENCODING;

EID: 17944376199     PISSN: 10502947     EISSN: None     Source Type: Journal    
DOI: 10.1103/PhysRevA.69.052329     Document Type: Article
Times cited : (25)

References (50)
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    • note
    • We note that the state of a temporal mode at the output of a laser operating far above its threshold is described as a Poisson-distributed, mixed photon number state. This description is further reinforced in our experiment by the use of photodetectors which project (destructively) the state of the temporal modes onto number states. Also, nowhere in our experiment do we determine the phase of the laser, hence a description of the output in terms of, say, coherent states is inappropriate. Thus, the light source in our experiment closely approximates a single photon source, albeit with the photons arriving at random times.
  • 46
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    • note
    • 1 may not give the maximum E for any transmission rate. Nevertheless, it gives almost maximum E, especially in the region of high transmission rate, since the capacity is the maximum transmission rate giving a non-negative E. Therefore, the discussions on the advantage of the QCHC is valid. To find the optimal measurement which maximizes E is still an open problem.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.