Averaged null energy condition violation in a conformally flat spacetime
Averaged null energy condition violation in a conformally flat spacetime
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共形平坦时空中的平均零能量条件违规
DOI：
10.1103/physrevd.81.024039
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发表时间：
2009
影响因子：
5
通讯作者：
K. Olum
中科院分区：
文献类型：
--
作者：
Douglas Urban;K. Olum
我们证明了在3+1维共形平坦时空中，共形耦合标量场可以违反平均零能量条件。违反取决于量子态，并且可以根据需要进行调整。它不是由异常的存在引起的，尽管异常违规也是可能的。由于共形平坦时空中的所有测地线都是消时的，因此消时平均零能量条件也同样不成立。
We show that the averaged null energy condition can be violated by a conformally coupled scalar field in a conformally flat spacetime in 3+1 dimensions. The violation is dependent on the quantum state and can be made as large as desired. It does not arise from the presence of anomalies, although anomalous violations are also possible. Since all geodesics in conformally flat spacetimes are achronal, the achronal averaged null energy condition is likewise violated.