|
| related topics |
| {information, entropy, channel} |
| {alice, bob, state} |
| {entanglement, phys, rev} |
| {time, systems, information} |
| {particle, mechanics, theory} |
| {bell, inequality, local} |
| {field, particle, equation} |
| {operator, operators, space} |
| {state, states, entangled} |
| {classical, space, random} |
| {theory, mechanics, state} |
| {error, code, errors} |
|
Negative entropy and information in quantum mechanics
N. J. Cerf, C. Adami
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
non-separability. The possibility that negative (virtual) information can be
carried by entangled particles suggests a consistent interpretation of quantum
informational processes.
- oai_identifier:
- oai:arXiv.org:quant-ph/9512022
- categories:
- quant-ph atom-ph
- comments:
- 4 pages RevTeX, 2 figures. Expanded discussion of quantum
teleportation and superdense coding, and minor corrections. To appear in
Phys. Rev. Lett
- doi:
- 10.1103/PhysRevLett.79.5194
- arxiv_id:
- quant-ph/9512022
- journal_ref:
- Phys.Rev.Lett. 79 (1997) 5194
- report_no:
- KRL MAP-191
- created:
- 1995-12-19
- updated:
- 1997-10-29
Full article ▸
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