Universe before Planck time: A quantum gravity model

T. Padmanabhan
Phys. Rev. D 28, 756 – Published 15 August 1983
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Abstract

A model for quantum gravity can be constructed by treating the conformal degree of freedom of spacetime as a quantum variable. An isotropic, homogeneous cosmological solution in this quantum gravity model is presented. The spacetime is nonsingular for all the three possible values of three-space curvature, and agrees with the classical solution for time scales larger than the Planck time scale. A possibility of quantum fluctuations creating the matter in the universe is suggested.

  • Received 20 October 1982

DOI:https://doi.org/10.1103/PhysRevD.28.756

©1983 American Physical Society

Authors & Affiliations

T. Padmanabhan

  • Tata Institute of Fundamental Research, Homi Bhabha Road, Bombay 400005, India

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Issue

Vol. 28, Iss. 4 — 15 August 1983

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