Title :
Quantum wiretap channel with non-uniform random number and its exponent of leaked information
Author :
Hayashi, Masahito
Author_Institution :
Grad. Sch. of Math., Nagoya Univ., Nagoya, Japan
Abstract :
A usual code for quantum wiretap channel requires an auxiliary random variable subject to the perfect uniform distribution. However, it is difficult to prepare such an auxiliary random variable. We propose a code that requires only an auxiliary random variable subject to a non-uniform distribution instead of the perfect uniform distribution. Further, we evaluate the exponential decreasing rate of leaked information.
Keywords :
channel coding; quantum communication; auxiliary random variable; channel code; leaked information exponent; nonuniform random number; perfect uniform distribution; quantum wiretap channel; Approximation methods; Channel models; Eigenvalues and eigenfunctions; Encoding; Helium; Mutual information; Random variables; exponential rate; non-asymptotic setting; non-uniform auxiliary random number; quantum channel resolvability; quantum wire-tap channel;
Conference_Titel :
Information Theory Proceedings (ISIT), 2012 IEEE International Symposium on
Conference_Location :
Cambridge, MA
Print_ISBN :
978-1-4673-2580-6
Electronic_ISBN :
2157-8095
DOI :
10.1109/ISIT.2012.6284691
