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Advances in High Energy Physics
Volume 2014 (2014), Article ID 958137, 5 pages
http://dx.doi.org/10.1155/2014/958137
Research Article

Analysis of Scalar Field Cosmology with Phase Space Deformations

1Departamento de Física de la Universidad de Guanajuato, Apartado Postal E-143, 37150 León, GTO, Mexico
2Centro Universitario de la Ciénega, Universidad de Guadalajara, Avenida Universidad 1115 Edificio B, 47820 Ocotlán, JAL, Mexico
3Departamento de Matemáticas, Facultad de Ciencias Universidad Autónoma de Baja California, Apartado Postal 1880, 22860 Ensenada, BC, Mexico

Received 19 December 2013; Revised 5 April 2014; Accepted 5 April 2014; Published 30 April 2014

Academic Editor: Chao-Qiang Geng

Copyright © 2014 Sinuhe Perez-Payan et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. The publication of this article was funded by SCOAP3.

Abstract

Phase space deformations on scalar field cosmology are studied. The deformation is introduced by modifying the symplectic structure of the minisuperspace variables. The effects of the deformation are studied in the “C-frame” and the “NC-frame.” In order to remove the ambiguities of working on different frames, a new principle is introduced. When we impose that both frames should be physically equivalent, we conclude that the only possibility for this model, is to have an effective cosmological constant . Finally we bound the parameter space for and .