Properties of Coherent Optical Communication with Received Quantum State Control and Its Capacity

Osamu HIROTA  Yoshihiro YOSHIDA  Masao NAKAGAWA  Mikio TAKAHARA  

Publication
IEICE TRANSACTIONS (1976-1990)   Vol.E71   No.4   pp.372-375
Publication Date: 1988/04/25
Online ISSN: 
DOI: 
Print ISSN: 0000-0000
Type of Manuscript: LETTER
Category: Optical Communication
Keyword: 


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Summary: 
The advantage of nonstandard quantum states such as two-photon coherent state (or squeezed states) and photon number state as transmitter state is strongly degraded by transmission loss in quantum communications. To cope with such a problem, a new application of these states is proposed, and it is shown that its system has infinite capacity.