Title :
Remarks on concavity of the auxiliary function appearing in quantum reliability function
Author :
Yanagi, Kenjiro ; Furuichi, Shigeru ; Kuriyama, Ken
Author_Institution :
Dept. of Appl. Sci., Yamaguchi Univ., Japan
fDate :
29 June-4 July 2003
Abstract :
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 proved for 0≤s≤1 in two dimensional case.
Keywords :
channel coding; quantum communication; random codes; auxiliary function concavity; quantum reliability function; quantum states; random coding exponent; Capacity planning; Channel coding; Computer aided software engineering; Error probability; Hilbert space; Probability distribution; Quantum computing; Quantum mechanics; Sufficient conditions;
Conference_Titel :
Information Theory, 2003. Proceedings. IEEE International Symposium on
Print_ISBN :
0-7803-7728-1
DOI :
10.1109/ISIT.2003.1228473
