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High Energy Physics - Theory

arXiv:hep-th/0012245 (hep-th)
[Submitted on 27 Dec 2000 (v1), last revised 24 Jan 2002 (this version, v2)]

Title:Origin of a classical space in guantum cosmologies

Authors:A.A. Kirillov, G.V. Serebryakov
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Abstract: The influence of vector fields on the origin of a classical space in quantum cosmologies and on the possible compactification process in multidimensional gravity is investigated. It is shown that all general features of the transition between classical and quantum regimes of the evolution can be obtained within the simplest Bianchi-I model for arbitrary number of dimensions. It is shown that the classical space appears when the horizon size reaches the smallest of characteristic scales (the characteristic scale of inhomogeneity or a scale associated with vector fields). In multidimensional case the presence of vector fields completely removes the initial stage of the compactification process which takes place in the case of vacuum models.
Comments: 4 pages, Latex, no figures, minor corrections in the text and in some formulas, matches version published in Gravitation & Cosmology Journal - ref: Gravitation & Cosmology, Vol. 7, (2001) No. 3 (27), pp. 211-214
Subjects: High Energy Physics - Theory (hep-th); Astrophysics (astro-ph); General Relativity and Quantum Cosmology (gr-qc); High Energy Physics - Phenomenology (hep-ph); Quantum Physics (quant-ph)
Cite as: arXiv:hep-th/0012245
  (or arXiv:hep-th/0012245v2 for this version)
  https://doi.org/10.48550/arXiv.hep-th/0012245
Journal reference: Grav.Cosmol. 7 (2001) 211-214

Submission history

From: Alex Kirillov [view email]
[v1] Wed, 27 Dec 2000 15:49:04 UTC (8 KB)
[v2] Thu, 24 Jan 2002 06:05:01 UTC (11 KB)
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