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arXiv 2501.18072hep-thmath-phmath.MP
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有质量场论的新真空边界效应

New vacuum boundary effects of massive field theories

Manuel Asorey, Fernando Ezquerro, Miguel Pardina

AI总结:

本文分析了3+1维时空中大质量标量场在不同边界条件下Casimir能量的指数衰减行为,发现边界条件可按衰减速率分为独立与互连两类,前者衰减速度是后者的两倍,为非阿贝尔规范理论的非微扰比较提供了基础。

摘要:

解析论证表明,2+1维规范理论中的Casimir能量随边界间距离呈指数衰减。非微扰数值模拟也观察到了这一现象。这种指数衰减对不同边界条件的依赖性有助于更好地理解这些理论的红外行为,特别是其质量谱。预计在3+1维中存在类似行为。受此特征启发,我们分析了3+1维时空中大质量标量场在不同边界条件下Casimir能量指数衰减的依赖性。我们证明,根据Casimir能量指数衰减的速率,边界条件可分为两个不同的族。如果每个边界上的边界条件是独立的(例如两个边界都满足Dirichlet边界条件),则Casimir能量的指数衰减速度是边界条件互连两个边界板时(例如周期或反周期边界条件)的两倍。这些结果将有助于与非阿贝尔规范理论非微扰区域中的Casimir能量进行比较。

英文摘要:

Analytical arguments suggest that the Casimir energy in 2+1 dimensions for gauge theories exponentially decays with the distance between the boundaries. The phenomenon has also been observed by non-perturbative numerical simulations. The dependence of this exponential decay on the different boundary conditions could help to better understand the infrared behavior of these theories and in particular their mass spectrum. A similar behavior is expected in 3+1 dimensions. Motivated by this feature we analyze the dependence of the exponential decay of Casimir energy for different boundary conditions of massive scalar fields in 3+1 dimensional spacetimes. We show that the boundary conditions classify in two different families according on the rate of this exponential decay of the Casimir energy. If the boundary conditions on each boundary are independent (e.g. both boundaries satisfy Dirichlet boundary conditions), the Casimir energy has a exponential decay that is two times faster than when the boundary conditions interconnect the two boundary plates (e.g. for periodic or antiperiodic boundary conditions). These results will be useful for a comparison with the Casimir energy in the non-perturbative regime of non-Abelian gauge theories.

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