Tsuyoshi Sasaki USUDA


Realization of Quantum Receiver for M-Ary Signals
Yuji FUJIHARA Shigeru TATSUTA Tsuyoshi Sasaki USUDA Ichi TAKUMI Masayasu HATA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2001/04/01
Vol. E84-A  No. 4  pp. 906-912
Type of Manuscript:  Special Section PAPER (Special Section on Fundamentals of Information and Communications)
Category: 
Keyword: 
quantum communication theoryquantum detectionquantum receiverrealization problemerror probability
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Application of Quantum Cryptography to an Eavesdropping Detectable Data Transmission
Takamitsu KUDO Tsuyoshi Sasaki USUDA Ichi TAKUMI Masayasu HATA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1999/10/25
Vol. E82-A  No. 10  pp. 2178-2184
Type of Manuscript:  Special Section PAPER (Special Section on Information Theory and Its Applications)
Category: Quantum Information
Keyword: 
quantum cryptographycommunication basesdetection of eavesdropping
 Summary | Full Text:PDF

A Simplification Algorithm for Calculation of the Mutual Information by Quantum Combined Measurement
Shogo USAMI Tsuyoshi Sasaki USUDA Ichi TAKUMI Masayasu HATA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1999/10/25
Vol. E82-A  No. 10  pp. 2185-2190
Type of Manuscript:  Special Section PAPER (Special Section on Information Theory and Its Applications)
Category: Quantum Information
Keyword: 
quantum information theorychannel capacitysquare-root measurementmutual informationsuperadditivity
 Summary | Full Text:PDF