Abstract

In this paper, we consider a three-mode optomechanical system, where two movable mirrors are coupled to a single cavity mode with different optomechanical coupling strengths. Instead of the phonon–phonon entanglement which has often been studied, here we focus on the photon–phonon entanglement. Using the logarithmic negativity, we found that stationary entanglement strongly depends on the temperature, dissipation rates, and optomechanical couplings. Furthermore, the system at hand exhibits an entanglement transfer that can be controlled using only one of the two optomechanical couplings. However, manipulating optomechanical couplings is limited by the stability conditions.

Graphic Abstract

中文翻译：

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在三模光机械系统中控制光子-声子纠缠

摘要

在本文中，我们考虑了一个三模光机系统，其中两个可移动反射镜耦合到具有不同光机耦合强度的单腔模式。不是经常研究的声子 - 声子纠缠，这里我们专注于光子 - 声子纠缠。使用对数负性，我们发现静止纠缠强烈依赖于温度、耗散率和光机械耦合。此外，手头的系统表现出纠缠传递，可以仅使用两个光机械耦合中的一个进行控制。然而，操纵光机械耦合受到稳定性条件的限制。

图形摘要