CROSSING THE PHANTOM DIVIDE WITH k-ESSENCE IN BRANEWORLDS

被引：3

作者：

Chimento, Luis P. ^{[1
,2
]}

Forte, Monica ^{[3
]}

Richarte, Martin G. ^{[3
]}

机构：

[1] Univ Basque Country, Dept Theoret Phys, POB 644, Bilbao 48080, Spain

[2] Basque Fdn Sci, IKERBASQUE, Bilbao 48011, Spain

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

来源：

MODERN PHYSICS LETTERS A | 2010年 / 25卷 / 29期

关键词：

Braneworlds; k-essence; phantom divide; PROBE WMAP OBSERVATIONS; DARK ENERGY; STANDARD MODEL; BRANE; CONSTRAINTS; DIMENSIONS; INFLATION; HIERARCHY; EXPANSION; UNIVERSE;

D O I：

10.1142/S0217732310033797

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We study a flat three-brane in the presence of the linear k field with nonzero cosmological constant. A(4). In this model the crossing of the phantom divide (PD) occurs when the k-essence energy density becomes negative. We show that in the high energy regime int he low energy regime it becomes linear. We find a scale factor that begins from a sigularity and evolves to a de sister stable stage while other solutions have a super-accelerated regime and end with a big rip. We use the energy conditions to show when the effective equation of state of the brane-universe crosses the PD.

引用

页码：2469 / 2481

页数：13

共 96 条

[1] Phantom k-essence cosmologies -: art. no. 023509 [J].

Aguirregabiria, JM ;

Chimento, LP ;

Lazkoz, R .

PHYSICAL REVIEW D, 2004, 70 (02) :5

[2] The case for dynamical dark energy revisited [J].

Alam, U ;

Sahni, V ;

Starobinsky, AA .

JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS, 2004, (06) :113-128

[3] Remarks on generalized Gauss-Bonnet dark energy [J].

Alimohammadi, M. ;

Ghalee, A. .

PHYSICAL REVIEW D, 2009, 79 (06)

[4]

[Anonymous], 1999, Astrophys. J., DOI DOI 10.1086/307221.3A

[5] New dimensions at a millimeter to a fermi and superstrings at a TeV [J].

Antoniadis, I ;

Arkani-Hamed, N ;

Dimopoulos, S ;

Dvali, G .

PHYSICS LETTERS B, 1998, 436 (3-4) :257-263

[6]

APOSTOLOPOULOS PS, ARXIVHEPTH0604014

[7] Crossing the w=-1 barrier in the D3-brane dark energy model -: art. no. 064017 [J].

Aref'eva, IY ;

Koshelev, AS ;

Vernov, SY .

PHYSICAL REVIEW D, 2005, 72 (06)

[8] The hierarchy problem and new dimensions at a millimeter [J].

Arkani-Hamed, N ;

Dimopoulos, S ;

Dvali, G .

PHYSICS LETTERS B, 1998, 429 (3-4) :263-272

[9] k-Inflation [J].

Armendáriz-Picón, C ;

Damour, T ;

Mukhanov, V .

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

[10]

ASHTEKAR A, ARXIV07081408

← 1 2 3 4 5 6 7 8 9 10 →