|
| related topics |
| {entanglement, phys, rev} |
| {cavity, atom, atoms} |
| {level, atom, field} |
| {bell, inequality, local} |
| {state, phys, rev} |
| {time, decoherence, evolution} |
| {cos, sin, state} |
| {energy, state, states} |
| {trap, ion, state} |
|
Generation of maximally entangled mixed states of two atoms via
on-resonance asymmetric atom-cavity couplings
Shang-Bin Li
abstract: A scheme for generating the maximally entangled mixed state of two atoms
on-resonance asymmetrically coupled to a single mode optical cavity field is
presented. The part frontier of both maximally entangled mixed states and
maximal Bell violating mixed states can be approximately reached by the
evolving reduced density matrix of two atoms if the ratio of coupling strengths
of two atoms is appropriately controlled. It is also shown that exchange
symmetry of global maximal concurrence is broken if and only if coupling
strength ratio lies between $\frac{\sqrt{3}}{3}$ and $\sqrt{3}$ for the case of
one-particle excitation and asymmetric coupling, while this partial
symmetry-breaking can not be verified by detecting maximal Bell violation.
- oai_identifier:
- oai:arXiv.org:quant-ph/0610188
- categories:
- quant-ph
- comments:
- 5 pages, 5 figures
- doi:
- 10.1103/PhysRevA.75.054304
- arxiv_id:
- quant-ph/0610188
- journal_ref:
- Phys. Rev. A 75, 054304 (2007)
- created:
- 2006-10-22
Full article ▸
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