The generation of photons from the vacuum by means of the movement of a mirror is known as the dynamical Casimir effect (DCE). In general, this phenomenon is effectively described by a field with time-dependent boundary conditions. Alternatively, we introduce a microscopic model of the DCE capable of capturing the essential features of the effect with no time-dependent boundary conditions. Besides the field, such a model comprises a subsystem representing the mirror's internal structure. In this work, we study one of the most straightforward mirror systems: a qubit moving in a cavity and coupled to one of the bosonic modes. We find that under certain conditions on the qubit's movement that do not depend on its physical properties, a large number of photons may be generated without changing the qubit state, as should be expected for a microscopic model of the mirror.

中文翻译：

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量子比特运动作为动力学卡西米尔效应的微观模型

通过反射镜的运动从真空中产生光子被称为动态卡西米尔效应 (DCE)。通常，这种现象可以通过具有时间相关边界条件的场来有效地描述。或者，我们引入了 DCE 的微观模型，该模型能够在没有时间依赖的边界条件的情况下捕获效应的基本特征。除了场之外，这样的模型还包括一个代表镜子内部结构的子系统。在这项工作中，我们研究了最直接的反射镜系统之一：在腔中移动并耦合到其中一种玻色模的量子比特。我们发现在不依赖于其物理特性的量子位运动的某些条件下，可能会产生大量光子而不改变量子位状态，