Notion of time and the semiclassical regime of quantum gravity

Mario A. Castagnino and Francisco D. Mazzitelli
Phys. Rev. D 42, 482 – Published 15 July 1990
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Abstract

Using the notion of probabilistic time introduced in a previous work, we analyze the perturbed minisuperspace models of quantum gravity. For Robertson-Walker minisuperspace we show that it is possible to derive the so-called self-consistent cosmology in the semiclassical regime. The generalization to models with several semiclassical variables is also discussed.

  • Received 23 October 1989

DOI:https://doi.org/10.1103/PhysRevD.42.482

©1990 American Physical Society

Authors & Affiliations

Mario A. Castagnino and Francisco D. Mazzitelli

  • Instituto de Astronomía y Física del Espacio, Casilla de Correo 67, Sucursal 28, 1428 Buenos Aires, Argentina
  • Departamento de Física, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Ciudad Universitaria, Pab 1, 1428 Buenos Aires, Argentina

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Vol. 42, Iss. 2 — 15 July 1990

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