DocumentCode
3278638
Title
Quantum rate-distortion theory for i.i.d. sources
Author
Devetak, Igor ; Berger, Toby
Author_Institution
Dept. of Electr. & Comput. Eng., Cornell Univ., Ithaca, NY, USA
fYear
2001
fDate
2001
Firstpage
276
Abstract
Using a natural distortion measure based on entanglement fidelity and allowing unrestricted classical side-information, we find the exact quantum rate-distortion function for a source of isotropic qubits. An upper bound, that we believe to be exact, is found in the case of biased sources. We also establish that rate-distortion codes that are optimal with respect to entanglement fidelity produce no entropy exchange with the environment of any individual qubit
Keywords
quantum communication; rate distortion theory; source coding; biased sources; entanglement fidelity; i.i.d. sources; isotropic qubits; natural distortion measure; quantum rate-distortion theory; rate-distortion codes; unrestricted classical side-information; upper bound; Codes; Decoding; Density measurement; Distortion measurement; Entropy; Quantum entanglement; Quantum mechanics; Rate-distortion; Size measurement; Upper bound;
fLanguage
English
Publisher
ieee
Conference_Titel
Information Theory, 2001. Proceedings. 2001 IEEE International Symposium on
Conference_Location
Washington, DC
Print_ISBN
0-7803-7123-2
Type
conf
DOI
10.1109/ISIT.2001.936139
Filename
936139
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