On the degenerate phase boundaries
General Relativity and Quantum Cosmology
2009-10-31 v1
Abstract
The structure of the phase boundary between degenerate and non-degenerate regions in Ashtekar's gravity has been studied by Bengtsson and Jacobson who conjectured that the "phase boundary" should always be null. In this paper, we reformulate the reparametrization procedure in the mapping language and distinguish a phase boundary from its image. It is shown that the image has to be null, while the nullness of the phase boundary requries more suitable criterion.
Cite
@article{arxiv.gr-qc/9904063,
title = {On the degenerate phase boundaries},
author = {Yongge Ma and Canbin Liang and Zhiquan Kuang},
journal= {arXiv preprint arXiv:gr-qc/9904063},
year = {2009}
}
Comments
10 pages, Revtex