Chronology Protection in Generalized Godel Spacetime
arXiv:hep-th/0209091 · doi:10.1103/PhysRevD.60.067505
Abstract
The effective action of a free scalar field propagating in the generalized Godel spacetime is evaluated by the zeta-function regularization method. From the result we show that the renormalized stress energy tensor may be divergent at the chronology horizon. This gives a support to the chronology protection conjecture.
Latex 6 pages, typos corrected