|
| related topics |
| {state, states, coherent} |
| {entanglement, phys, rev} |
| {information, entropy, channel} |
| {time, decoherence, evolution} |
| {state, phys, rev} |
| {alice, bob, state} |
| {temperature, thermal, energy} |
|
Decoherence and Entanglement in Two-mode Squeezed Vacuum States
Tohya Hiroshima
abstract: I investigate the decoherence of two-mode squeezed vacuum states by analyzing
the relative entropy of entanglement. I consider two sources of decoherence:
(i) the phase damping and (ii) the amplitude damping due to the coupling to the
thermal environment. In particular, I give the exact value of the relative
entropy of entanglement for the phase damping model. For the amplitude damping
model, I give an upper bound for the relative entropy of entanglement, which
turns out to be a good approximation for the entanglement measure in usual
experimental situations.
- oai_identifier:
- oai:arXiv.org:quant-ph/0006100
- categories:
- quant-ph
- comments:
- 5 pages, RevTex, 3 eps figures
- doi:
- 10.1103/PhysRevA.63.022305
- arxiv_id:
- quant-ph/0006100
- journal_ref:
- Phys. Rev. A 63, 022305 (2001)
- created:
- 2000-06-22
Full article ▸
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