DocumentCode
2057367
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.
fYear
2004
fDate
June 27 2004-July 2 2004
Firstpage
324
Lastpage
324
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;
fLanguage
English
Publisher
ieee
Conference_Titel
Information Theory, 2004. ISIT 2004. Proceedings. International Symposium on
Conference_Location
Chicago, IL
Print_ISBN
0-7803-8280-3
Type
conf
DOI
10.1109/ISIT.2004.1365361
Filename
1365361
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