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对于在芯片上的光学腔中的波斯-爱因斯坦凝聚物的强原子场合

Yves Colombe¹, Tilo Steinmetz, Guilhem Dubois

¹Laboratoire Kastler Brossel, ENS/UPMC-Paris 6/CNRS, 24 rue Lhomond, 75005 Paris, France.

|November 13, 2007

概括

研究人员使用基于纤维的腔体和原子芯片技术实现了斯-爱因斯坦凝聚物 (BEC) 和光学腔体之间的强合. 这一突破使得量子信息应用的原子光子相互作用能够得到精确的控制.

科学领域:

量子光学是一种量子光学.
原子物理原子物理
洞穴量子电力学量子电力学

背景情况:

空腔量子电动学的强合模式增强了原子-光子相互作用.
实现单个原子的强合已经很成熟,但将其扩展到诸如斯-爱因斯坦凝结体 (BEC) 等多原子系统一直是具有挑战性的.
之前的实验已经将BEC和光腔结合在一起,但不是在单个原子的强合模式下.

研究的目的:

通过实验实现BEC和光腔之间的强合.
开发一个系统,使BEC在光学腔内的确定性定位和控制成为可能.
为了研究强度合的BEC-空腔系统的行为和特性.

主要方法:

使用基于光纤的光学腔与原子芯片技术相结合.
实现了BECs在腔内的确定性定位,定位在单个反节点.
通过空腔传输测量和光谱映射研究了系统的反应.

主要成果:

在空腔模式内,为许多原子实现了相同的强合.
通过定位BEC来证明可控制和可调节的合速率.
观察到超出20 GHz的真空拉比裂变以及由于原子超细结构而导致的额外裂变.
在空腔传输测量过程中,在强度合的BEC中没有发现可测量的加热.

结论:

开发的系统成功地将BEC与强合系统中的光学空洞集成在一起.
这个平台为BEC提供了对光物质相互作用的精确控制.
该系统显示出作为一个强大的光物质量子接口来进行量子信息处理的前景.

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