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On Classes of Novel Quantum State for Attenuation Process
Tomohiko UYEMATSU Osamu HIROTA Kohichi SAKANIWA
Publication
IEICE TRANSACTIONS (1976-1990)
Vol.E70
No.4
pp.385-388 Publication Date: 1987/04/25 Online ISSN:
DOI: Print ISSN: 0000-0000 Type of Manuscript: LETTER Category: Optical Communication Keyword:
Full Text: PDF>>
Summary:
For optical digital communications with energy loss, it is shown that there is a state which achieves much superior bit error rate than the Glauber coherent state even if the signal to quantum noise ratio is the same. Moreover, the lower bound for bit error rate is obtained.
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