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arXiv · gr-qc/9907031

Semiclassical Limit and Time in Quantum Cosmology

Dongsu Bak·Sang Pyo Kim·Sung Ku Kim·Kwang-Sup Soh·Jae Hyung Yee
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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 $W$ as the imaginary part of the $\ln Ψ$ 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.

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Dongsu Bak, Sang Pyo Kim, Sung Ku Kim, Kwang-Sup Soh, Jae Hyung Yee. 1999-10-13. Semiclassical Limit and Time in Quantum Cosmology. https://arxiv.org/abs/gr-qc/9907031

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