论文标题
准周期鉴定的圆锥体时空中的量子真空波动效应
Quantum vacuum fluctuation effects in a quasi-periodically identified conical spacetime
论文作者
论文摘要
我们考虑了一个准周期鉴定的圆锥体时空，例如宇宙弦或披露之一，以研究非零平均量子真空波动对能量量张量的影响，并引起与带电标量的电源相关的电流密度。我们获得了两个点Wightman函数的封闭分析表达式以及场平方的真空期望值，以及能量弹药张量的所有组件。至于诱导的电流密度，由于所使用的准周期条件，发现的唯一非零平均分量是方位角。我们还将我们的结果与文献中的先前结果进行了比较。
We consider a quasi-periodically identified conical spacetime, like the one of a cosmic string or disclination, to investigate nonzero averaged quantum vacuum fluctuations effects on the energy-momentum tensor and induced current density associated with a charged scalar field. We obtain exactly closed analytical expressions for the two-point Wightman function and the vacuum expectation value of the field squared, as well as for all components of the energy-momentum tensor. As to the induced current density, due to the quasi-periodic condition used, the only nonzero averaged component found is the azimuthal one. We also compare our results with previous ones found in literature.
