论文标题
弱重力场中的准局部Casimir能量和真空浮力
Quasi-local Casimir energy and vacuum buoyancy in a weak gravitational field
论文作者
论文摘要
考虑到与能量及其在弯曲背景中的保存有关的问题，讨论了在弱重力场存在下的Casimir能量。众所周知，定义一般相对性的能量存在固有的困难，这本质上是由于其非定位性。使用准局部质量和能量的概念，证明可以将托尔曼质量归因于局限于卡西米尔腔的无质量标量场。这种非本地质量与预期的 - 与Casimir能量相吻合。目前的方法提供了作用于Casimir腔的真空浮力作用的替代推导，证实了Calloni {\ em等人}在一系列专门探索实验加权Casimir真空（所谓的Archimedes实验）的可能性中，证实了Calloni {\ em等人}所呈现的结果。
Casimir energy in presence of a weak gravitational field is discussed taking into account the issues related to energy and its conservation in a curved background. It is well-known that there are inherent difficulties in defining energy in General Relativity, essentially due to its non-localizability. Using the concept of quasi-local mass and energy, it is shown that it is possible to attribute a Tolman mass to a massless scalar field confined to a Casimir cavity. Such non-local mass coincides - as expected - with the Casimir energy. The present approach offers an alternative derivation of the vacuum buoyancy force acting on a Casimir cavity, confirming the results presented by Calloni {\em et al.} in a series of papers devoted to explore the possibility of experimentally weighting the Casimir vacuum (the so-called Archimedes Experiment).
