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 theory, quantum detection, quantum receiver, realization problem, error probability, 
 Summary | Full Text:PDF
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 cryptography, communication bases, detection 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 theory, channel capacity, square-root measurement, mutual information, superadditivity, 
 Summary | Full Text:PDF