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arXiv 0705.0597hep-th
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动力学Casimir效应的物理上合理的哈密顿表述

Physically Sound Hamiltonian Formulation of the Dynamical Casimir Effect

Jaume Haro, Emilio Elizalde

摘要:

最近[J. Haro和E. Elizalde,Phys. Rev. Lett. { \bf 97},130401(2006)]中,引入了哈密顿公式,以便解决与在反射镜移动时的所有时间的动态卡西米尔效应的物理描述相关联的一些长期存在的严重问题。在这里,我们提出了完整的计算提供精确的细节,特别是,正则化过程,这是决定性的正确推导的物理意义的量。一个基本的区别时,与其他作者以前获得的结果相比,在我们的方法中推导出的运动力包含一个反应项-成比例的镜子的加速度。这是为了在反射镜振荡期间始终获得具有正能量的粒子的本质-同时始终满足能量守恒定律。仔细分析以前在文献中获得的不同结果之间的相互关系,然后进行。为了简单起见,我们更详细地考虑了一维中性标量场的具体情况,其中有一个或两个部分透射镜(正则化问题的基本条件),但我们的一般方法被证明是可推广的,没有本质问题(本文第2节),在二维和更高维的任何类型的场。

英文摘要:

Recently [J. Haro and E. Elizalde, Phys. Rev. Lett. {\bf 97}, 130401 (2006)], a Hamiltonian formulation has been introduced in order to address some longstanding severe problems associated with the physical description of the dynamical Casimir effect at all times while the mirrors are moving. Here we present the complete calculation providing precise details, in particular, of the regularization procedure, which is decisive for the correct derivation of physically meaningful quantities. A basic difference when comparing with the results previously obtained by other authors is the fact that the motion force derived in our approach contains a reactive term --proportional to the mirrors' acceleration. This is of the essence in order to obtain particles with a positive energy all the time during the oscillation of the mirrors --while always satisfying the energy conservation law. A careful analysis of the interrelations among the different results previously obtained in the literature is then carried out. For simplicity, the specific case of a neutral scalar field in one dimension, with one or two partially transmitting mirrors (a fundamental proviso for the regularization issue) is considered in more detail, but our general method is shown to be generalizable, without essential problems (Sect. 2 of this paper), to fields of any kind in two and higher dimensions.

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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