Nonlinear quantum interferometric spectroscopy with entangled photon pairs
Nonlinear quantum interferometric spectroscopy with entangled photon pairs
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DOI：
10.1063/5.0079049
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发表时间：
2022-03-07
影响因子：
4.4
通讯作者：
Mukamel, Shaul
中科院分区：
文献类型：
--
作者：
Asban, Shahaf;Chernyak, Vladimir Y.;Mukamel, Shaul
我们在干涉光谱装置中建立了由纠缠光子对引起的时间分辨光子计数信号的封闭表达式。导出了刘维尔空间中的超算子表达式，可以解释耦合到浴池引起的松弛和减相。干涉测量装置不寻常地混合了物质和光变量，这使它们的解释变得复杂。我们为这个设置提供了一个直观的模块化框架，简化了它的描述。基于探测阶段和光物质相互作用过程的分离，我们证明了对纠缠时间和干涉时间变量控制着观测到的物理时间尺度。在相对于样本响应的小纠缠时间的限制情况下，只有少数过程有贡献，并且可以单独列出具体的贡献。由AIP出版社独家授权出版。
We develop closed expressions for a time-resolved photon counting signal induced by an entangled photon pair in an interferometric spectroscopy setup. Superoperator expressions in Liouville-space are derived that can account for relaxation and dephasing induced by coupling to a bath. Interferometric setups mix matter and light variables non-trivially, which complicates their interpretation. We provide an intuitive modular framework for this setup that simplifies its description. Based on the separation between the detection stage and the light-matter interaction processes, we show that the pair entanglement time and the interferometric time-variables control the observed physics time scale. Only a few processes contribute in the limiting case of small entanglement time with respect to the sample response, and specific contributions can be singled out. Published under an exclusive license by AIP Publishing.