Title :
Remarks on concavity of the auxiliary function appearing in quantum reliability function in classical-quantum channels
Author :
Fujii, Jun Ichi ; Nakamoto, Ritsuo ; Yanagi, Kenjiro
Author_Institution :
Dept. of Arts & Sci., Osaka Kyoiku Univ., Kashiwara
Abstract :
This is an extension of results represented in ISIT2003. Concavity of the auxiliary function which appears in the random coding exponent as the lower bound of the quantum reliability function for general quantum states is proven for 0 les s les 1
Keywords :
quantum communication; random codes; reliability; classical-quantum channels; concavity; quantum reliability function; random coding exponent; Art; Character generation; Chromium; Cities and towns; Error probability; Information theory; Probability distribution; Quantum mechanics; Reliability engineering; Reliability theory;
Conference_Titel :
Information Theory, 2005. ISIT 2005. Proceedings. International Symposium on
Conference_Location :
Adelaide, SA
Print_ISBN :
0-7803-9151-9
DOI :
10.1109/ISIT.2005.1523466
