Tachyon Matter in Loop Quantum Cosmology
广义相对论与量子宇宙学
2009-11-11 v2 天体物理学
高能物理 - 理论
摘要
An analytical approach for studying the cosmological scenario with a homogeneous tachyon field within the framework of loop quantum gravity is developed. Our study is based on the semi-classical regime where space time can be approximated as a continuous manifold, but matter Hamiltonian gets non-perturbative quantum corrections. A formal correspondence between classical and loop quantum cosmology is also established. The Hamilton-Jacobi method for getting exact solutions is constructed and some exact power-law as well as bouncing solutions are presented.
引用
@article{arxiv.gr-qc/0604050,
title = {Tachyon Matter in Loop Quantum Cosmology},
author = {A. A. Sen},
journal= {arXiv preprint arXiv:gr-qc/0604050},
year = {2009}
}
备注
5 pages, Revtex style. Title changed. Some general comments and references added. No major changes. Accepted for publication in Phys. Rev.D