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arXiv 0811.3561quant-phcond-mat.dis-nn
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非经典光多次散射引起的空间量子关联的观测

Observation of spatial quantum correlations induced by multiple scattering of non-classical light

Stephan Smolka, Alexander Huck, Ulrik L. Andersen, Ad Lagendijk, Peter Lodahl

摘要:

我们给出了由压缩光的多次散射引起的光子空间量子关联的实验实现。量子关联将光子沿着两个不同的光轨迹传播通过随机介质,并且在范围上是无限的。当改变入射到多重散射介质的量子态时,可以观察到正的和负的空间量子相关,并且相关的大小由光子数控制。实验结果与最近的理论建议,通过实施多次散射的全量子模型非常一致。

英文摘要:

We present the experimental realization of spatial quantum correlations of photons that are induced by multiple scattering of squeezed light. The quantum correlation relates photons propagating along two different light trajectories through the random medium and is infinite in range. Both positive and negative spatial quantum correlations are observed when varying the quantum state incident to the multiple scattering medium, and the magnitude of the correlations is controlled by the number of photons. The experimental results are in excellent agreement with recent theoretical proposals by implementing the full quantum model of multiple scattering.

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