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General Relativity and Quantum Cosmology

arXiv:1804.00513 (gr-qc)
[Submitted on 2 Apr 2018]

Title:Cosmologies with scalar fields from higher dimensions applied to Bianchi type $\rm VI_{h=-1}$ model: classical and quantum solutions

Authors:J. Socorro, L. Toledo Sesma, Luis O. Pimentel
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Abstract:In this work we construct an effective four-dimensional model by compactifying a ten-dimensional theory of gravity coupled with a real scalar dilaton field on a time-dependent torus. The corresponding action in four dimensions is similar to the action of K-essence theories. This approach is applied to anisotropic cosmological Bianchi type $VI_{(h=-1)}$ model for which we study the classical coupling of the anisotropic scale factors with the two real scalar moduli produced by the compactification process. The classical Einstein field equations give us a hidden symmetry, corresponding to equal radii B=C, which permits us to solve exactly the equations of motion. With this hidden symmetry, then we solve the FRW, finding that the scale factor goes to B radii. Also the corresponding Wheeler-DeWitt (WDW) equation in the context of Standard Quantum Cosmology is solved. Bohm's formalism for this cosmological model is revisited too.
Comments: 13 pages, 1 figure
Subjects: General Relativity and Quantum Cosmology (gr-qc); High Energy Physics - Theory (hep-th)
Cite as: arXiv:1804.00513 [gr-qc]
  (or arXiv:1804.00513v1 [gr-qc] for this version)
  https://doi.org/10.48550/arXiv.1804.00513

Submission history

From: Luis O. Pimentel [view email]
[v1] Mon, 2 Apr 2018 14:02:56 UTC (106 KB)
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