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arXiv · 1509.02250

A classical postselected weak amplification scheme via thermal light cross-Kerr effect

Tao Wang·Lin-Hai Jiang·Gang Li·Chang-Bao Fu·Xue-Mei Su
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Abstract

In common sense, postselected weak amplification must be related to destructive interference effect of the meter system, and a single photon exerts no effect on thermal field via cross-phasemodulation (XPM) interaction. In this Letter we present, for the first time, a thermal light cross-Kerr effect. Through analysis, we reveal two unexpected results: i) postselection and weak amplification can be explained at a classical level without destructive interference, and ii) weak amplification and weak value are not one thing. After postselection a new mixed light can be generated which is nonclassical. This scheme can be realized via electromagnetically-induced transparency.

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Tao Wang, Lin-Hai Jiang, Gang Li, Chang-Bao Fu, Xue-Mei Su. 2015-10-06. A classical postselected weak amplification scheme via thermal light cross-Kerr effect. https://arxiv.org/abs/1509.02250

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