论文标题
量子运动作为动态casimir效应的微观模型
Qubit Motion as a Microscopic Model for the Dynamical Casimir Effect
论文作者
论文摘要
通过镜子的运动从真空中产生的光子被称为动力学卡西米尔效应（DCE）。通常，这种现象由具有时间依赖性边界条件的场有效地描述。另外，我们考虑了能够在没有时间依赖的边界条件的情况下再现效果的DCE的微观模型。除了字段外，这种模型还包括一个子系统对镜像的内部结构进行建模。在这项工作中，我们研究了镜子最直接的系统：在腔体中移动的量子，并耦合到一种玻感模式。我们发现，在Qubit运动的某些条件下，不取决于其物理特性，可以在不更改量子状态的情况下生成大量光子，这对于镜像的显微镜模型应该可以预期。
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 consider a microscopic model of the DCE capable of reproducing the effect with no time-dependent boundary conditions. Besides the field, such a model comprises a subsystem modeling the mirror's internal structure. In this work, we study the most straightforward system for the mirror: 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.
