Chronology Protection in Two-Dimensional Dilaton Gravity
High Energy Physics - Theory
2009-12-30 v1
Abstract
The global structure of 1 + 1 dimensional compact Universe is studied in two-dimensional model of dilaton gravity. First we give a classical solution corresponding to the spacetime in which a closed time-like curve appears, and show the instability of this spacetime due to the existence of matters. We also observe quantum version of such a spacetime having closed timelike curves never reappear unless the parameters are fine-tuned.
Cite
@article{arxiv.hep-th/9304044,
title = {Chronology Protection in Two-Dimensional Dilaton Gravity},
author = {Takashi Mishima and Akika Nakamichi},
journal= {arXiv preprint arXiv:hep-th/9304044},
year = {2009}
}
Comments
10 pages, plain Tex, phyzzx, TIT/HEP-218/COSMO-29