标题： 带有屏蔽标量场的动态卡西米尔效应 显示英文标题

标题： Dynamical Casimir effect with screened scalar fields

摘要： 理解暗能量和暗物质的本质是现代物理学最大的开放问题之一。 具有屏蔽标量场的标量-张量理论，如卡门模型，是被提出的最流行的解决方案之一。 在本文中，我们首次分析了卡门场对动力卡西米尔效应的影响，其主要特点是与腔体内边界周期运动的共振条件相关的粒子产生。 为此，我们采用了一种最近开发的方法，通过时变布洛赫变换来计算全局双曲时空内受限量子标量场的演化。 结果表明，由于卡门场的存在，粒子产生减少。 此外，我们的布洛赫系数和产生的粒子平均数结果在没有卡门场的情况下与已知结果一致。 我们的结果开启了对屏蔽标量场背景上量子场演化的讨论。 显示英文摘要

摘要： Understanding the nature of dark energy and dark matter is one of modern physics' greatest open problems. Scalar-tensor theories with screened scalar fields like the chameleon model are among the most popular proposed solutions. In this article, we present the first analysis of the impact of a chameleon field on the dynamical Casimir effect, whose main feature is the particle production associated with a resonant condition of boundary periodic motion in cavities. For this, we employ a recently developed method to compute the evolution of confined quantum scalar fields in a globally hyperbolic spacetime by means of time-dependent Bogoliubov transformations. As a result, we show that particle production is reduced due to the presence of the chameleon field. In addition, our results for the Bogoliubov coefficients and the mean number of created particles agree with known results in the absence of a chameleon field. Our results initiate the discussion of the evolution of quantum fields on screened scalar field backgrounds.