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arXiv 1806.08191cond-mat.mes-hallquant-ph
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光子的动态合成电场

Dynamically Generated Synthetic Electric Fields for Photons

Petr Zapletal, Stefan Walter, Florian Marquardt

摘要:

静态合成磁场产生的现象包括洛伦兹力和量子霍尔效应,即使是中性粒子,它们现在已经在各种物理系统中实现。此外,向全动力合成规范场发展,还允许粒子运动对场的反作用。如果这导致了一个随时间变化的矢量势,那么传统的电磁学就预言了一个电场的产生。在这里,我们展示了如何合成电场的光子出现自洽由于在驱动系统的非线性动力学。我们的分析是基于光机阵列,动态规范场自然产生的声子辅助光子隧穿。我们研究开放,一维阵列,其中合成磁场是缺席。然而,我们表明,合成电场可以动态地产生,其中,重要的是,抑制光子传输的阵列。这些领域的产生取决于光子传播的方向,导致一种新的机制,光子二极管,诱导非线性非互易运输通过动态合成规范场。

英文摘要:

Static synthetic magnetic fields give rise to phenomena including the Lorentz force and the quantum Hall effect even for neutral particles, and they have by now been implemented in a variety of physical systems. Moving towards fully dynamical synthetic gauge fields allows, in addition, for backaction of the particles' motion onto the field. If this results in a time-dependent vector potential, conventional electromagnetism predicts the generation of an electric field. Here, we show how synthetic electric fields for photons arise self-consistently due to the nonlinear dynamics in a driven system. Our analysis is based on optomechanical arrays, where dynamical gauge fields arise naturally from phonon-assisted photon tunneling. We study open, one-dimensional arrays, where synthetic magnetic fields are absent. However, we show that synthetic electric fields can be generated dynamically, which, importantly, suppress photon transport in the array. The generation of these fields depends on the direction of photon propagation, leading to a novel mechanism for a photon diode, inducing nonlinear nonreciprocal transport via dynamical synthetic gauge fields.

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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