Coherence and emergence of classical spacetime

Sang Pyo Kim, Jeong-Young Ji, Hak-Soo Shin, and Kwang-Sup Soh
Phys. Rev. D 56, 3756 – Published 15 September 1997
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Abstract

Using the coherent-state representation we show that the classical Einstein equation for the Friedmann-Robertson-Walker cosmological model with a general minimal scalar field can be derived from the semiclassical quantum Einstein equation.

  • Received 18 March 1997

DOI:https://doi.org/10.1103/PhysRevD.56.3756

©1997 American Physical Society

Authors & Affiliations

Sang Pyo Kim

  • Department of Physics, Kunsan National University, Kunsan 573-701, Korea

Jeong-Young Ji, Hak-Soo Shin, and Kwang-Sup Soh

  • Department of Physics Education, Seoul National University, Seoul 151-742, Korea

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Issue

Vol. 56, Iss. 6 — 15 September 1997

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