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arXiv 0903.0135quant-ph
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原子莫特绝缘体的电磁感应透明和光存储

Electromagnetically Induced Transparency and Light Storage in an Atomic Mott Insulator

U. Schnorrberger, J. D. Thompson, S. Trotzky, R. Pugatch, N. Davidson, S. Kuhr, I. Bloch

摘要:

实验研究了超冷~(87)Rb原子处于Mott绝缘态时在三维光晶格中的电磁感应透明和光存储。我们已经观察到约240毫秒的光存储时间,据我们所知,有史以来最长的超冷原子样品。利用由空间不均匀的远失谐光场引起的差分光位移,我们在原子样品上压印了“相位梯度”,从而控制了取回的光脉冲的角度重定向。

英文摘要:

We experimentally demonstrate electromagnetically induced transparency and light storage with ultracold 87Rb atoms in a Mott insulating state in a three dimensional optical lattice. We have observed light storage times of about 240 ms, to our knowledge the longest ever achieved in ultracold atomic samples. Using the differential light shift caused by a spatially inhomogeneous far detuned light field we imprint a "phase gradient" across the atomic sample, resulting in controlled angular redirection of the retrieved light pulse.

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