Dark-state polaritons in electromagnetically induced transparency
Dark-state polaritons in electromagnetically induced transparency
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DOI：
10.1103/physrevlett.84.5094
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发表时间：
2000-05-29
影响因子：
8.6
通讯作者：
Lukin, MD
中科院分区：
文献类型：
--
作者：
Fleischhauer, M;Lukin, MD
我们确定形式稳定的光和物质的耦合激发（“暗态极化激元”）与电磁感应透明的量子场的传播。暗态极化激元的性质，如群速度，是由光和物质成分之间的混合角决定的，并且可以在脉冲传播时由外部相干场控制。特别是，光脉冲可以被减速和“捕获”，在这种情况下，它们的形状和量子态被映射到物质的亚稳态集体态上。这种可逆的相干控制技术的可能应用进行了讨论。
We identify form-stable coupled excitations of light and matter ("dark-state polaritons") associated with the propagation of quantum fields in electromagnetically induced transparency. The properties of dark-state polaritons such as the group velocity are determined by the mixing angle between light and matter components and can be controlled by an external coherent field as the pulse propagates. In particular, light pulses can be decelerated and "trapped" in which case their shape and quantum state are mapped onto metastable collective states of matter. Possible applications of this reversible coherent-control technique are discussed.