How to test stringy dark energy?

被引：93

作者：

Frampton, PH ^{[1
]}

机构：

[1] Univ N Carolina, Dept Phys & Astron, Chapel Hill, NC 27599 USA

来源：

PHYSICS LETTERS B | 2003年 / 555卷 / 3-4期

关键词：

D O I：

10.1016/S0370-2693(03)00055-8

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

It is suggested, by using a covariant Lagrangian formalism to estimate the equation of state w = p/p, that stringy dark energy predicts w < -1, a negative pressure larger in magnitude than that for a cosmological constant or quintessence. This would lead to a later transition from decelerating to accelerating cosmological expansion; w = -4/3 is briefly considered as one illustrative example. (C) 2003 Published by Elsevier Science B.V.

引用

页码：139 / 143

页数：5

共 38 条

[1]

Amendariz-Picon C., 2001, PHYS REV D, V63

[2]

AMENDARIZPICON C, 2000, PHYS REV LETT, V85, P4438, DOI DOI 10.1103/PHYSREVLETT.85.4438

[3] Cosmology - The cosmic triangle: Revealing the state of the universe [J].

Bahcall, NA ;

Ostriker, JP ;

Perlmutter, S ;

Steinhardt, PJ .

SCIENCE, 1999, 284 (5419) :1481-1488

[4] Modified dispersion relations from closed strings in toroidal cosmology [J].

Bastero-Gil, M ;

Frampton, PH ;

Mersini, L .

PHYSICAL REVIEW D, 2002, 65 (10)

[5]

BASTEROGIL M, ASTROPH0205271

[6]

Bond J.R., CMB Analysis of Boomerang & Maxima & the Cosmic Parameters tot, b2, cdm2,

[7]

CALDWELL R, ASTROPH9908168

[8] Cosmic ray and neutrino tests of special relativity [J].

Coleman, S ;

Glashow, SL .

PHYSICS LETTERS B, 1997, 405 (3-4) :249-252

[9] High-energy tests of Lorentz invariance [J].

Coleman, S ;

Glashow, SL .

PHYSICAL REVIEW D, 1999, 59 (11)

[10] Lorentz-violating extension of the standard model [J].

Colladay, D ;

Kostelecky, VA .

PHYSICAL REVIEW D, 1998, 58 (11)

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