First-order formalism and dark energy

被引：98

作者：

Bazeia, D ^{[1
]}

Gomes, CB ^{[1
]}

Losano, L ^{[1
]}

Menezes, R ^{[1
]}

机构：

[1] Univ Fed Paraiba, Dept Fis, BR-58051970 Joao Pessoa, Paraiba, Brazil

来源：

PHYSICS LETTERS B | 2006年 / 633卷 / 4-5期

关键词：

D O I：

10.1016/j.physletb.2005.12.031

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

This work deals with cosmological models driven by real scalar field, described by standard dynamics in generic spherical, flat, and hyperbolic geometries. We introduce a first-order formalism, which shows how to relate the potential that specifies the scalar field model to Hubble's parameter in a simple and direct manner. Extensions to tachyonic dynamics, and to two or more real scalar fields are also presented. (c) 2005 Elsevier B.V. All rights reserved.

引用

页码：415 / 419

页数：5

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