Semiclassical Limit and Time in Quantum Cosmology
General Relativity and Quantum Cosmology
2008-11-26 v2
Abstract
We propose a method to recover the time variable and the classical evolution of the Universe from the minisuperspace wave function of the Wheeler-DeWitt equation. Defining a Hamilton-Jacobi characteristic function as the imaginary part of the we can recover the classical solution, and quantum corrections. The key idea is to let the energy of the Wheeler-DeWitt equation vanish only after the semiclassical limit is taken.
Cite
@article{arxiv.gr-qc/9907031,
title = {Semiclassical Limit and Time in Quantum Cosmology},
author = {Dongsu Bak and Sang Pyo Kim and Sung Ku Kim and Kwang-Sup Soh and Jae Hyung Yee},
journal= {arXiv preprint arXiv:gr-qc/9907031},
year = {2008}
}
Comments
RevTex, 7 pages, no figures; the methodology is clarified and references added