Late time acceleration in a deformed phase space model of dilaton cosmology

被引：34
作者：
Vakili, B. [1 ]
Pedram, P. [2 ]
Jalalzadeh, S. [3 ]
机构：
[1] Azad Univ Chalous, Dept Phys, Chalous, Iran
[2] Islamic Azad Univ, Plasma Phys Res Ctr, Tehran, Iran
[3] Shaheed Beheshti Univ, Dept Phys, Tehran 19839, Iran
来源：
PHYSICS LETTERS B | 2010年 / 687卷 / 2-3期
关键词：
Noncommutative cosmology; Deformed phase space; Late time acceleration; QUANTUM STRING COSMOLOGY; FIELD-THEORY; NONCOMMUTATIVITY; VIOLATION; MECHANICS; LECTURES;
D O I：
10.1016/j.physletb.2010.03.016
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
The effects of noncommutativity on the phase space of a dilatonic cosmological model is investigated. The existence of such noncommutativity results in a deformed Poisson algebra between the minisuperspace variables and their momenta conjugate. For an exponential dilaton potential, the exact solutions in the commutative and noncommutative cases are presented and compared. We use these solutions to address the late time acceleration issue of cosmic evolution. (C) 2010 Elsevier B.V. All rights reserved.
引用
收藏
页码：119 / 123
页数：5
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