Disformal gravity theories: A Jordan frame analysis

被引：54

作者：

Sakstein, Jeremy ^{[1
]}

Verner, Sarunas ^{[1
]}

机构：

[1] Univ Portsmouth, Inst Cosmol & Gravitat, Portsmouth PO1 3FX, Hants, England

来源：

PHYSICAL REVIEW D | 2015年 / 92卷 / 12期

关键词：

COSMOLOGICAL CONSTRAINTS;

D O I：

10.1103/PhysRevD.92.123005

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The Jordan frame action for general disformal theories is presented and studied for the first time, motivated by several unresolved mysteries that arise when working in the Einstein frame. We present the Friedmann equations and, specializing to exponential functions, study the late-time cosmology using both dynamical systems methods and by finding approximate solutions. Our analysis reveals that either the disformal effects are irrelevant or the Universe evolves towards a phantom phase where the equation of state of dark energy is -3. There is a marginal case where the asymptotic state of the Universe depends on the model parameters and de Sitter solutions can be obtained. Our findings indicate that the metric singularity found using the Einstein frame construction corresponds to phantom behavior in the Jordan frame and we argue that this is the case for general disformal theories.

引用

页数：17

共 62 条

[1] Planck 2013 results. XVI. Cosmological parameters [J].

Ade, P. A. R. ;

Aghanim, N. ;

Armitage-Caplan, C. ;

Arnaud, M. ;

Ashdown, M. ;

Atrio-Barandela, F. ;

Aumont, J. ;

Baccigalupi, C. ;

Banday, A. J. ;

Barreiro, R. B. ;

Bartlett, J. G. ;

Battaner, E. ;

Benabed, K. ;

Benoit, A. ;

Benoit-Levy, A. ;

Bernard, J. -P. ;

Bersanelli, M. ;

Bielewicz, P. ;

Bobin, J. ;

Bock, J. J. ;

Bonaldi, A. ;

Bond, J. R. ;

Borrill, J. ;

Bouchet, F. R. ;

Bridges, M. ;

Bucher, M. ;

Burigana, C. ;

Butler, R. C. ;

Calabrese, E. ;

Cappellini, B. ;

Cardoso, J. -F. ;

Catalano, A. ;

Challinor, A. ;

Chamballu, A. ;

Chary, R. -R. ;

Chen, X. ;

Chiang, H. C. ;

Chiang, L. -Y ;

Christensen, P. R. ;

Church, S. ;

Clements, D. L. ;

Colombi, S. ;

Colombo, L. P. L. ;

Couchot, F. ;

Coulais, A. ;

Crill, B. P. ;

Curto, A. ;

Cuttaia, F. ;

Danese, L. ;

Davies, R. D. .

ASTRONOMY & ASTROPHYSICS, 2014, 571

[2] Scalar field deformations of ΛCDM cosmology [J].

Alho, Artur ;

Uggla, Claes .

PHYSICAL REVIEW D, 2015, 92 (10)

[3] Coupled quintessence [J].

Amendola, L .

PHYSICAL REVIEW D, 2000, 62 (04) :10

[4]

[Anonymous], 2015, J COSMOL ASTROPART P

[5]

Armendariz-Picon C, 2001, PHYS REV D, V63, DOI 10.1103/PhysRevD.63.103510

[6]

Bekenstein J. D., 1992, M GROSSM M GEN REL, P905

[7] RELATION BETWEEN PHYSICAL AND GRAVITATIONAL GEOMETRY [J].

BEKENSTEIN, JD .

PHYSICAL REVIEW D, 1993, 48 (08) :3641-3647

[8] Relativistic gravitation theory for the modified Newtonian dynamics paradigm [J].

Bekenstein, JD .

PHYSICAL REVIEW D, 2004, 70 (08)

[9] A test of general relativity using radio links with the Cassini spacecraft [J].

Bertotti, B ;

Iess, L ;

Tortora, P .

NATURE, 2003, 425 (6956) :374-376

[10] Improved cosmological constraints from a joint analysis of the SDSS-II and SNLS supernova samples [J].

Betoule, M. ;

Kessler, R. ;

Guy, J. ;

Mosher, J. ;

Hardin, D. ;

Biswas, R. ;

Astier, P. ;

El-Hage, P. ;

Konig, M. ;

Kuhlmann, S. ;

Marriner, J. ;

Pain, R. ;

Regnault, N. ;

Balland, C. ;

Bassett, B. A. ;

Brown, P. J. ;

Campbell, H. ;

Carlberg, R. G. ;

Cellier-Holzern, F. ;

Cinabro, D. ;

Conley, A. ;

D'Andrea, C. B. ;

DePoy, D. L. ;

Doi, M. ;

Ellis, R. S. ;

Fabbro, S. ;

Filippenko, A. V. ;

Foley, R. J. ;

Frieman, J. A. ;

Fouchez, D. ;

Galbany, L. ;

Goobar, A. ;

Gupta, R. R. ;

Hill, G. J. ;

Hlozek, R. ;

Hogan, C. J. ;

Hook, I. M. ;

Howell, D. A. ;

Jha, S. W. ;

Le Guillou, L. ;

Leloudas, G. ;

Lidrnan, C. ;

Marshall, J. L. ;

Moeller, A. ;

Mourao, A. M. ;

Neveu, J. ;

Nichol, R. ;

Olmstead, M. D. ;

Palanque-Delabrouille, N. ;

Perlinutter, S. .

ASTRONOMY & ASTROPHYSICS, 2014, 568

← 1 2 3 4 5 6 7 →