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arXiv 2007.05512hep-th
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评“弱引力场中的Casimir效应:Schwinger方法”

Comment on "Casimir effect in a weak gravitational field: Schwinger's approach"

A. P. C. M. Lima, G. Alencar, R. R. Landim

摘要:

我们证明了F. [职业]定量重力36,no.23,235006(2019)],卡西米尔效应由于重力而接受二阶修正是不一致的。我们特别注意跟踪适当的时间哈密尔顿,正确的程序是使用本征函数和本征值的协变DAlembertian。在一些取消之后,我们发现函数W [0]的值与Sorge获得的值相同。然而,我们认为,适当的真空能量密度携带额外的时空体积项,抵消了引力修正,回到闵可夫斯基时空相同的表达式。

英文摘要:

We show that the statement in F. Sorge [Class. Quant. Grav. 36, no.23, 235006 (2019)] that the Casimir effect receives second order corrections due to gravity is not consistent. We remark especially on the tracing of the proper time Hamiltonian, where the correct procedure is to use the eigenfunctions and eigenvalues of the covariant DAlembertian. After some cancellations we find that the value of the functional W [0] is the same as obtained by Sorge. However, we argue that the proper vacuum energy density carries extra space-time volume terms that cancel over the gravitational correction, returning to the same expression as in Minkowski space-time.

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