Effects of deformed phase space on scalar field cosmology

The effects of phase space deformations on standard scalar field cosmology are studied. The deformation is introduced by modifying the symplectic structure of the minisuperspace variables to have a deformed Poisson algebra among the coordinates and the canonical momenta. It is found that in the defo...

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Bibliographic Details
Published in:Physical review. D, Particles, fields, gravitation, and cosmology Particles, fields, gravitation, and cosmology, 2013-07, Vol.88 (2), Article 027503
Main Authors: Pérez-Payán, S., Sabido, M., Yee-Romero, C.
Format: Article
Language:English
Subjects:
Cosmological constant
Cosmology
Deformation
Deformation effects
Gravitation
Mathematical models
Scalars
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Summary:The effects of phase space deformations on standard scalar field cosmology are studied. The deformation is introduced by modifying the symplectic structure of the minisuperspace variables to have a deformed Poisson algebra among the coordinates and the canonical momenta. It is found that in the deformed minisuperspace model, an accelerating scale factor arises in the absence of a cosmological constant, and this acceleration is a consequence of the phase space deformation parameter beta .
ISSN:1550-7998
1550-2368
DOI:10.1103/PhysRevD.88.027503