Title :
On feedback and the classical capacity of a noisy quantum channel
Author :
Bowen, G. ; Nagarajan, R.
Author_Institution :
Dept. of Appl. Math. & Theor. Phys., Cambridge Univ.
fDate :
June 27 2004-July 2 2004
Abstract :
In Shannon information theory the capacity of a memoryless communication channel cannot be increased by the use of feedback. The use of classical feedback is shown to provide no increase in the classical capacity of a memoryless quantum channel when feedback is used across nonentangled input states, or when the channel is an entanglement-breaking channel
Keywords :
channel capacity; information theory; quantum entanglement; Shannon information theory; classical capacity; classical feedback; entanglement-breaking channel; memoryless communication channel; noisy quantum channel; nonentangled input states; Computer science; Information theory; Mutual information; Output feedback; Protocols; Quantum computing; Quantum entanglement; Quantum mechanics; State feedback; Upper bound;
Conference_Titel :
Information Theory, 2004. ISIT 2004. Proceedings. International Symposium on
Conference_Location :
Chicago, IL
Print_ISBN :
0-7803-8280-3
DOI :
10.1109/ISIT.2004.1365361
