Acceleration of the universe with a simple trigonometric potential

被引：78
作者：
Banerjee, N [1 ]
Das, S [1 ]
机构：
[1] Jadavpur Univ, Dept Phys, Relat & Cosmol Res Ctr, Kolkata 700032, W Bengal, India
来源：
GENERAL RELATIVITY AND GRAVITATION | 2005年 / 37卷 / 10期
关键词：
quintessence model; cosmology; scalar field;
D O I：
10.1007/s10714-005-0152-6
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
In this paper, we investigate the quintessence model with a minimally coupled scalar field in the context of recent supernovae observations. By choosing a particular form of the deceleration parameter q, which gives an early deceleration and late time acceleration for the dust dominated model, we show that this sign flip in q can be obtained by a simple trigonometric potential. The early matter dominated model expands with q = 1/2 as desired and enters a negative q phase quite late during the evolution.
引用
收藏
页码：1695 / 1703
页数：9
相关论文
共 35 条
  • [1] Acceleration at z > 1?
    Amendola, L
    [J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2003, 342 (01) : 221 - 226
  • [2] [Anonymous], 1995, COSMOLOGY ORIGIN EVO
  • [3] Constraints on cosmological parameters from MAXIMA-1
    Balbi, A
    Ade, P
    Bock, J
    Borrill, J
    Boscaleri, A
    De Bernardis, P
    Ferreira, PG
    Hanany, S
    Hristov, V
    Jaffe, AH
    Lee, AT
    Oh, S
    Pascale, E
    Rabii, B
    Richards, RL
    Smoot, GF
    Stompor, R
    Winant, CD
    Wu, JHP
    [J]. ASTROPHYSICAL JOURNAL, 2000, 545 (01) : L1 - L4
  • [4] A quintessence scalar field in Brans-Dicke theory
    Banerjee, N
    Pavón, D
    [J]. CLASSICAL AND QUANTUM GRAVITY, 2001, 18 (04) : 593 - 599
  • [5] Cosmic acceleration without quintessence -: art. no. 043504
    Banerjee, N
    Pavón, D
    [J]. PHYSICAL REVIEW D, 2001, 63 (04)
  • [6] Generalized Chaplygin gas, accelerated expansion, and dark-energy-matter unification
    Bento, MC
    Bertolami, O
    Sen, AA
    [J]. PHYSICAL REVIEW D, 2002, 66 (04):
  • [7] BENTO MC, ASTROPH0210468
  • [8] Nonminimal coupling and quintessence
    Bertolami, O
    Martins, PJ
    [J]. PHYSICAL REVIEW D, 2000, 61 (06):
  • [9] Reconstruction of a scalar-tensor theory of gravity in an accelerating universe
    Boisseau, B
    Esposito-Farèse, G
    Polarski, D
    Starobinsky, AA
    [J]. PHYSICAL REVIEW LETTERS, 2000, 85 (11) : 2236 - 2239
  • [10] Cosmological imprint of an energy component with general equation of state
    Caldwell, RR
    Dave, R
    Steinhardt, PJ
    [J]. PHYSICAL REVIEW LETTERS, 1998, 80 (08) : 1582 - 1585
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