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arXiv 1404.6541gr-qcmath-phmath.MPquant-ph
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具有背景势的标量场的量子不等式

Quantum inequality for a scalar field with a background potential

Eleni-Alexandra Kontou, Ken D. Olum

摘要:

量子不等式是量子场的能量密度的负时间平均的界。它们可以用来排除广义相对论中的奇异时空。研究了具有背景势的标量场的量子不等式(即,在闵可夫斯基空间中,质量随时空位置而变化。我们把潜在的微扰和明确计算的一阶校正的量子不等式与任意的采样函数,使用一般的结果Fewster和史密斯。对于任意的势,我们给出了修正量的界,即势及其前三阶导数的最大值。我们在这里开发的技术也将适用于一般小曲率时空中的量子不等式,这是排除奇异现象所必需的。

英文摘要:

Quantum inequalities are bounds on negative time-averages of the energy density of a quantum field. They can be used to rule out exotic spacetimes in general relativity. We study quantum inequalities for a scalar field with a background potential (i.e., a mass that varies with spacetime position) in Minkowski space. We treat the potential as a perturbation and explicitly calculate the first-order correction to a quantum inequality with an arbitrary sampling function, using general results of Fewster and Smith. For an arbitrary potential, we give bounds on the correction in terms of the maximum values of the potential and its first three derivatives. The techniques we develop here will also be applicable to quantum inequalities in general spacetimes with small curvature, which are necessary to rule out exotic phenomena.

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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