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首页> 外文期刊>Physical Review, A >Reaching the optomechanical strong-coupling regime with a single atom in a cavity
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Reaching the optomechanical strong-coupling regime with a single atom in a cavity

机译：用腔内用单个原子达到光学力学强耦合状态

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摘要

Amajor goal within the field of optomechanics is to achieve the single-photon strong-coupling regime, wherein even amechanical displacement as small as the zero-point uncertainty is enough to shift an optical cavity resonance by more than its linewidth. This goal is difficult, however, due to the small zero-point motion of conventional mechanical systems. Here, we show that an atom trapped in and coupled to a cavity constitutes an attractive platform for realizing this regime. In particular, while many experiments focus on achieving strong coupling between a photon and the atomic internal degree of freedom, this same resource also naturally enables one to obtain optomechanical strong coupling, in combinationwith the lowmass of an atom and the isolation of its motion from a thermal environment. As an example, we show that an optomechanically induced photon blockade can be realized in realistic setups, and provide signatures of how this effect can be distinguished from the conventional Jaynes-Cummings blockade associated with the two-level nature of the atomic transition.
机译：光机械领域内的AmAjor目标是实现单光子强耦合状态，其中甚至从零点不确定性那么小的机器置换足以使光学腔共振的比其线宽更大。然而，由于传统机械系统的零点运动小，因此难以实现这一目标。在这里，我们表明捕获和耦合到腔的原子构成了实现这一制度的有吸引力的平台。特别是，虽然许多实验专注于在光子和原子内部自由度之间实现强的耦合，但是这种相同的资源也是自然的，使得可以获得OptoMenchical的强耦合，同时使用原子的低数和其运动的隔离。热环境。作为示例，我们表明，可以在现实设置中实现光学诱导的光子封锁，并提供如何从与原子转换的两级性质相关联的传统潮恩斯 - 卡姆蛋白封锁来实现这种效果的象征。

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