Entangled two atoms through different couplings and the thermal noise

Details Entangled two atoms through different couplings and the thermal noise Entangled two atoms through different couplings and the thermal noise

2003-08-15

arxiv.org/abs/quant-ph/0308086v1

J. Opt. B: Quantum Semiclass. Opt. 6 (2004) 378-382

Physics

Quantum Physics

4 pages, 4 figures

Scientific paper

10.1088/1464-4266/6/9/003

The entanglement of two atoms is studied when the two atoms are coupled to a single-mode thermal field with different couplings. The different couplings of two atoms are in favor of entanglement preparation: it not only makes the case of absence entanglement with same coupling appear entanglement, but also enhances the entanglement with the increasing of the relative difference of two couplings. We also show that the diversity of coupling can improved the critical temperature. If the optical cavity is leaky during the time evolution, the dissipative thermal environment is benefit to produce the entanglement.

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