Cosmological dynamics of a phantom field

被引：450

作者：

Singh, P ^{[1
]}

Sami, A ^{[1
]}

Dadhich, N ^{[1
]}

机构：

[1] IUCAA, Pune 411007, Maharashtra, India

来源：

PHYSICAL REVIEW D | 2003年 / 68卷 / 02期

关键词：

D O I：

10.1103/PhysRevD.68.023522

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We study the general features of a dynamics of a phantom field in the cosmological context. In the case of an inverse coshyperbolic potential, we demonstrate that the phantom field can successfully drive the observed current accelerated expansion of the Universe with the equation of state parameter w(phi)<-1. The de Sitter universe turns out to be the late time attractor of the model. The main features of the dynamics are independent of the initial conditions and the parameters of the model. The model fits the supernova data very well, allowing for -2.4<w(phi)<-1 at a 95% confidence level.

引用

页数：7

共 122 条

[1] Phenomenology of a realistic accelerating Universe using only Planck-scale physics [J].

Albrecht, A ;

Skordis, C .

PHYSICAL REVIEW LETTERS, 2000, 84 (10) :2076-2079

[2] k-Inflation [J].

Armendáriz-Picón, C ;

Damour, T ;

Mukhanov, V .

PHYSICS LETTERS B, 1999, 458 (2-3) :209-218

[3]

BABAK SV, GRQC0209006

[4] Cosmology with tachyon field as dark energy [J].

Bagla, JS ;

Jassal, HK ;

Padmanabhan, T .

PHYSICAL REVIEW D, 2003, 67 (06)

[5] Quintessence arising from exponential potentials [J].

Barreiro, T ;

Copeland, EJ ;

Nunes, NJ .

PHYSICAL REVIEW D, 2000, 61 (12)

[6]

Bento MC, 2003, PHYS REV D, V67, DOI [10.1103/PhysRevD.67.063511, 10.1103/PhysRevD.67.023504]

[7]

Bento MC, 2002, PHYS REV D, V65, DOI 10.1103/PhysRevD.65.063513

[8] T-duality and actions for non-BPS D-branes [J].

Bergshoeff, EA ;

de Roo, M ;

de Wit, TC ;

Eyras, E ;

Panda, S .

JOURNAL OF HIGH ENERGY PHYSICS, 2000, (05) :XVIII-10

[9] Discovery of two distant type Ia supernovae in the Hubble Deep Field-North with the Advanced Camera for Surveys [J].

Blakeslee, JP ;

Tsvetanov, ZI ;

Riess, AG ;

Ford, HC ;

Illingworth, GD ;

Magee, D ;

Tonry, JL ;

Benítez, N ;

Clampin, M ;

Hartig, GF ;

Meurer, GR ;

Sirianni, M ;

Ardila, DR ;

Bartko, F ;

Bouwens, R ;

Broadhurst, T ;

Cross, N ;

Feldman, PD ;

Franx, M ;

Golimowski, DA ;

Gronwall, C ;

Kimble, R ;

Krist, J ;

Martel, AR ;

Menanteau, F ;

Miley, G ;

Postman, M ;

Rosati, P ;

Sparks, W ;

Strolger, LG ;

Tran, HD ;

White, RL ;

Zheng, W .

ASTROPHYSICAL JOURNAL, 2003, 589 (02) :693-703

[10] Reconstruction of a scalar-tensor theory of gravity in an accelerating universe [J].

Boisseau, B ;

Esposito-Farèse, G ;

Polarski, D ;

Starobinsky, AA .

PHYSICAL REVIEW LETTERS, 2000, 85 (11) :2236-2239

← 1 2 3 4 5 6 7 8 9 10 →