Null energy conditions outside a background potential
高能物理 - 理论
2014-11-18 v2
摘要
We study the Casimir energy of a minimally coupled, real, massless scalar field outside a spherically symmetric background potential. We obtain a general expression for the null energy condition in d dimensions and explicit expressions for a perfectly reflecting spherical boundary in 3+1 and 2+1 dimensions. In these cases, the null energy condition is always violated for radial motion and obeyed for azimuthal motion. Nevertheless, the averaged null energy condition is always obeyed.
引用
@article{arxiv.hep-th/0307067,
title = {Null energy conditions outside a background potential},
author = {Delia Schwartz Perlov and Ken D. Olum},
journal= {arXiv preprint arXiv:hep-th/0307067},
year = {2014}
}
备注
17 pages, 7 figures Minor errors in equations (15,26,31-33,35,A5,A6) corrected. Conclusions unaffected. After original publication, we learned of similar work by Saharian (hep-th/0012185)