|
| related topics |
| {classical, space, random} |
| {entanglement, phys, rev} |
| {time, decoherence, evolution} |
| {energy, gaussian, time} |
| {time, wave, function} |
| {state, states, entangled} |
| {state, states, coherent} |
| {operator, operators, space} |
| {theory, mechanics, state} |
| {temperature, thermal, energy} |
| {cos, sin, state} |
| {equation, function, exp} |
|
Semiclassical limit of the entanglement in closed pure systems
Renato M. Angelo, Kyoko Furuya
abstract: We discuss the semiclassical limit of the entanglement for the class of
closed pure systems. By means of analytical and numerical calculations we
obtain two main results: (i) the short-time entanglement does not depend on
Planck's constant and (ii) the long-time entanglement increases as more
semiclassical regimes are attained. On one hand, this result is in contrast
with the idea that the entanglement should be destroyed when the macroscopic
limit is reached. On the other hand, it emphasizes the role played by
decoherence in the process of emergence of the classical world. We also found
that, for Gaussian initial states, the entanglement dynamics may be described
by an entirely classical entropy in the semiclassical limit.
- oai_identifier:
- oai:arXiv.org:quant-ph/0410103
- categories:
- quant-ph
- comments:
- 8 pages, 2 figures (accepted for publication in Phys. Rev. A)
- doi:
- 10.1103/PhysRevA.71.042321
- arxiv_id:
- quant-ph/0410103
- created:
- 2004-10-13
- updated:
- 2005-04-08
Full article ▸
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