Published December 29, 1997
| Published
Journal Article
Open
Negative Entropy and Information in Quantum Mechanics
- Creators
- Cerf, N. J.
-
Adami, C.
Abstract
A framework for a quantum mechanical information theory is introduced that is based entirely on density operators, and gives rise to a unified description of classical correlation and quantum entanglement. Unlike in classical (Shannon) information theory, quantum (von Neumann) conditional entropies can be negative when considering quantum entangled systems, a fact related to quantum nonseparability. The possibility that negative (virtual) information can be carried by entangled particles suggests a consistent interpretation of quantum informational processes.
Additional Information
©1997 The American Physical Society Received 29 January 1997 We thank Steve Koonin, Asher Peres, Barry Simon, and Armin Uhlmann for enlightening discussions. This work has been funded by NSF Grants No. PHY 94-12818 and PHY 94-20470, and by DARPAyARO through the QUIC Program (No. DAAH04-96-1-3086). N.J.C. is Collaborateur Scientifique of the Belgian National Fund for Scientific Research.Attached Files
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Additional details
- Eprint ID
- 5512
- Resolver ID
- CaltechAUTHORS:CERprl97
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2006-10-20Created from EPrint's datestamp field
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2021-11-08Created from EPrint's last_modified field