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Engineering atom-atom thermal entanglement via two-photon process

Y. Q. Guo·L. Zhou·H. S. Song
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Abstract

We study the system that two atoms simultaneously interact with a single-mode thermal field via different couplings and different spontaneous emission rates when two-photon process is involved. It is found that we indeed can employ the different couplings to produce the atom-atom thermal entanglement in two-photon process. The different atomic spontaneous emission rates are also utilizable in generating thermal entanglement. We also investigate the effect of the cavity leakage. To the initial atomic state $|ee> ,$a slight leakage can relieve the restriction of interaction time and we can obtain a large and steady entanglement.

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Y. Q. Guo, L. Zhou, H. S. Song. 2005-09-21. Engineering atom-atom thermal entanglement via two-photon process. https://arxiv.org/abs/quant-ph/0509146

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