Interacting fluids generating identical, dual and phantom cosmologies

被引：21

作者：

Chimento, LP ^{[1
]}

机构：

[1] Univ Buenos Aires, Fac Ciencias Exactas & Nat, Dept Fis, RA-1428 Buenos Aires, DF, Argentina

来源：

PHYSICS LETTERS B | 2006年 / 633卷 / 01期

关键词：

D O I：

10.1016/j.physletb.2005.11.027

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We find the group of symmetry transformations generated by interacting fluids in spatially flat Friedmann-Robertson-Walker (FRW) spacetime which links cosmologies with the same scale factor (identity) or with scale factors a and a(-1) (duality). There exists a duality between contracting and superaccelerated expanding scenarios associated with (phantom) cosmologies. We investigate the action of this symmetry group on self-interacting minimally (conformally) coupled quintessence and k-essence cosmologies. (c) 2005 Elsevier B.V. All rights reserved.

引用

页码：9 / 13

页数：5

共 50 条

[1]

AGUIRREGABIRIA JM, ASTROPH0411258

[2] Black hole mass decreasing due to phantom energy accretion [J].

Babichev, E ;

Dokuchaev, V ;

Eroshenko, Y .

PHYSICAL REVIEW LETTERS, 2004, 93 (02) :021102-1

[3]

BARREIRO T, ASTROPH0408185

[4] Sudden future singularities [J].

Barrow, JD .

CLASSICAL AND QUANTUM GRAVITY, 2004, 21 (11) :L79-L82

[5]

CALCAGNI G, HEPPH0402126, P66002

[6] A phantom menace? Cosmological consequences of a dark energy component with super-negative equation of state [J].

Caldwell, RR .

PHYSICS LETTERS B, 2002, 545 (1-2) :23-29

[7] Can the dark energy equation-of-state parameter w be less than-1? -: art. no. 023509 [J].

Carroll, SM ;

Hoffman, M ;

Trodden, M .

PHYSICAL REVIEW D, 2003, 68 (02)

[8] Exact model of conformal quintessence -: art. no. 083511 [J].

Chimento, LP ;

Jakubi, AS ;

Pavón, D .

PHYSICAL REVIEW D, 2004, 69 (08) :7

[9] Symmetry and inflation [J].

Chimento, LP .

PHYSICAL REVIEW D, 2002, 65 (06)

[10] Unified phantom cosmologies [J].

Chimento, LP ;

Lazkoz, R .

INTERNATIONAL JOURNAL OF MODERN PHYSICS D, 2005, 14 (3-4) :587-598

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