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arXiv · 0711.1651

Deterministic generation of polarization-entangled photon pairs in a cavity-QED system

Pengbo li·Ying Gu·Qihuang Gong·Guangcan Guo
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Abstract

We propose a cavity-QED scheme that can deterministically generate Einstein-Podosky-Rosen polarization-entangled photon pairs. A four-level tripod atom successively couples to two high-Q optical cavities possessing polarization degeneracy, assisted by a classical $π$-polarized pump field. The stimulated Raman adiabatic passage process in the atom-cavity system is used to produce the polarization-entangled photon pairs. The proposal is particularly robust against atomic spontaneous decay, which should have potential applications in quantum information processing.

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Pengbo li, Ying Gu, Qihuang Gong, Guangcan Guo. 2007-11-11. Deterministic generation of polarization-entangled photon pairs in a cavity-QED system. https://doi.org/10.1016/j.physleta.2008.07.065

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