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首页> 外文期刊>The Journal of Chemical Physics >Interferometric spectroscopy with quantum light: Revealing out-of-time-ordering correlators
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Interferometric spectroscopy with quantum light: Revealing out-of-time-ordering correlators

机译：具有量子灯的干涉光谱：揭示了不习惯的相关器

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摘要

We survey the inclusion of interferometric elements in nonlinear spectroscopy performed with quantum light. Controlled interference of electromagnetic fields coupled to matter can induce constructive or destructive contributions of microscopic coupling sequences (histories) of matter. Since quantum fields do not commute, quantum light signals are sensitive to the order of light-matter coupling sequences. Matter correlation functions are thus imprinted by different field factors, which depend on that order. We identify the associated quantum information obtained by controlling the weights of different contributing pathways and offer several experimental schemes for recovering it. Nonlinear quantum response functions include out-of-time-ordering matter correlators (OTOCs), which reveal how perturbations spread throughout a quantum system (information scrambling). Their effect becomes most notable when using ultrafast pulse sequences with respect to the path difference induced by the interferometer. OTOCs appear in quantum-informatics studies in other fields, including black hole, high energy, and condensed matter physics.
机译：我们调查了在量子光非线性光谱中包含干涉元素的情况。耦合到物质上的电磁场的受控干扰可以诱导物质微观耦合序列（历史）的建设性或破坏性贡献。由于量子场不相互转换，量子光信号对光-物质耦合序列的顺序很敏感。因此，物质关联函数由不同的场因子烙印，这些场因子取决于顺序。我们通过控制不同贡献路径的权重来识别相关的量子信息，并提供几种实验方案来恢复这些信息。非线性量子响应函数包括无序物质相关器（OTOC），它揭示了扰动如何在整个量子系统中传播（信息置乱）。当使用与干涉仪引起的路径差有关的超快脉冲序列时，它们的效果最为显著。OTOC出现在其他领域的量子信息学研究中，包括黑洞、高能和凝聚态物理。

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