QED trace anomaly, non-local Lagrangians and quantum equivalence principle violations

QED trace anomaly, non-local Lagrangians and quantum equivalence principle violations
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QED 迹线异常、非局部拉格朗日量和违反量子等效原理

DOI:
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发表时间:
2015
期刊:
影响因子:
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通讯作者:
B. K. El
B. K. El
中科院分区:
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文献类型:
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作者:
J. Donoghue;B. K. El

文献摘要

被引文献

相似文献

本文讨论了在一个循环中利用非局部有效作用量导出迹异常的方法。这提供了一个简单和有益的形式,并强调红外物理。然后,我们使用这个例子来探索非局部作用量的几个属性,包括显示完整的非局部能量动量张量的作用量。作为应用,我们表明,在一个循环的长距离校正导致量子违反的一些经典后果的等效原理,例如产生的频率依赖性的引力弯曲的光。
A bstractWe discuss the derivation of the trace anomaly using a non-local effective action at one loop. This provides a simple and instructive form and emphasizes infrared physics. We then use this example to explore several of the properties of non-local actions, including displaying the action for the full non-local energy-momentum tensor. As an application, we show that the long-distance corrections at one loop lead to quantum violations of some classical consequences of the equivalence principle, for example producing a frequency dependence of the gravitational bending of light.