Title :
A general formula for the classical capacity of a general quantum channel
Author :
Hayashi, Masahito ; Nagaoka, Hiroshi
Author_Institution :
Lab. for Math. Neurosci., Brain Sci. Inst., Saitama, Japan
Abstract :
We derive a general formula of the channel capacity for any (classical-) quantum channel. It can be regarded as a quantum version of Verdu and Han´s result (see IEEE Trans. Inform. Theory, vol.40, p.1147-57, 1994). Our results contain Holevo´s (see IEEE Trans. Inform. Theory, vol.44, p.269-73, 1998) and Schumacher and Westmoreland´s (see Phys. Rev. A, vol.56, p.131-8, 1997) results as the stationary and memoryless case.
Keywords :
channel capacity; quantum communication; classical quantum channel; general formula; memoryless case; quantum communication channel; stationary case; Channel capacity; Communication channels; Decoding; Error probability; Hilbert space; Information systems; Neuroscience; Probability distribution; Quantum mechanics; Testing;
Conference_Titel :
Information Theory, 2002. Proceedings. 2002 IEEE International Symposium on
Print_ISBN :
0-7803-7501-7
DOI :
10.1109/ISIT.2002.1023343
