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arXiv 0811.0264quant-phcond-mat.other
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单原子腔量子电动力学中的双光子门

Two-photon gateway in one-atom cavity quantum electrodynamics

A. Kubanek, A. Ourjoumtsev, I. Schuster, M. Koch, P. W. H. Pinkse, K. Murr, G. Rempe

摘要:

单个原子从共振激光束中一个光子接一个光子地吸收和发射光。我们证明了与光腔强耦合的单个原子可以成对地吸收和发射共振光子。在光子相关实验中观察到的效果的光通过腔传输。我们发现,原子腔系统将输入光子的随机流转换为输出光子的相关流,从而充当双光子网关。这种现象的根源在于原子-腔系统能量结构的量子非谐性。未来的应用可能包括通过一个原子控制两个光子的相互作用。

英文摘要:

Single atoms absorb and emit light from a resonant laser beam photon by photon. We show that a single atom strongly coupled to an optical cavity can absorb and emit resonant photons in pairs. The effect is observed in a photon correlation experiment on the light transmitted through the cavity. We find that the atom-cavity system transforms a random stream of input photons into a correlated stream of output photons, thereby acting as a two-photon gateway. The phenomenon has its origin in the quantum anharmonicity of the energy structure of the atom-cavity system. Future applications could include the controlled interaction of two photons by means of one atom.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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