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arXiv 2310.12366quant-phphysics.optics
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复杂耦合紧束缚模型的分析演化:在量子光操控中的应用

Analytic Evolution for Complex Coupled Tight-Binding Models: Applications to Quantum Light Manipulation

Santiago Rojas-Rojas, Camila Muñoz, Edgar Barriga, Pablo Solano, Aldo Delgado, Carla Hermann-Avigliano

AI总结:

本文提出了广义紧束缚模型中复数最近邻耦合演化的解析解,可高效计算期望值与关联,并应用于N端口线性耦合器的量子光操控,为量子态空间演化奠定数学框架。

摘要:

我们提出了广义紧束缚模型中演化的解析解,该模型考虑了等振幅和任意相位的复数最近邻耦合。我们的发现为高效计算系统内的期望值和关联提供了一个强大的工具,这些量通常难以通过数值计算。我们将结果应用于使用N端口线性耦合器的量子光操控相关实例,描述了单(多)模压缩、单光子增加(减少)高斯态以及二阶位点间光子关联的演化。值得注意的是,我们的解析结果优于标准数值计算。我们的研究为描述受紧束缚模型支配的广泛物理系统中量子态空间演化奠定了全面的数学框架基础。

英文摘要:

We present analytic solutions to the evolution in generalized tight-binding models, which consider complex first-neighbor couplings with equal amplitude and arbitrary phases. Our findings provide a powerful tool for efficiently calculating expectation values and correlations within the system, which are otherwise difficult to compute numerically. We apply our results to relevant examples in quantum light manipulation using N-port linear couplers, describing the evolution of single(multi)-mode squeezing, single photon added (subtracted) Gaussian states, and second-order site-to-site photon correlations. Significantly, our analytic results outperform standard numerical calculations. Our study paves the way for a comprehensive mathematical framework describing the spatial evolution of quantum states across a wide range of physical systems governed by the tight-binding model.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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