Dark energy dominance and cosmic acceleration in first order formalism - INSPIRE

DataBETA

Dark energy dominance and cosmic acceleration in first order formalism

Gianluca Allemandi
(
- Turin U.
)
,
Andrzej Borowiec
(
- Wroclaw U.
)
,
Mauro Francaviglia
(
- Turin U.
)
,
Sergei D. Odintsov
(
- ICREA, Barcelona and
- Barcelona, IEEC and
- CSIC, Catalunya and
- Barcelona, IFAE
)

Apr, 2005

19 pages

Published in:

Phys.Rev.D 72 (2005) 063505

e-Print:

gr-qc/0504057 [gr-qc]

DOI:

10.1103/PhysRevD.72.063505

View in:

ADS Abstract Service

reference search347 citations

Citations per year

Abstract: (arXiv)

The current accelerated universe could be produced by modified gravitational dynamics as it can be seen in particular in its Palatini formulation. We analyze here a specific non-linear gravity-scalar system in the first order Palatini formalism which leads to a FRW cosmology different from the purely metric one. It is shown that the emerging FRW cosmology may lead either to an effective quintessence phase (cosmic speed-up) or to an effective phantom phase. Moreover, the already known gravity assisted dark energy dominance occurs also in the first order formalism. Finally, it is shown that a dynamical theory able to resolve the cosmological constant problem exists also in this formalism, in close parallel with the standard metric formulation.

Note:

21 pages, LaTeX file, no figures. Replaced version to be published on Phys. Rev. D

04.20.-q
98.80.Jk
dark energy
astrophysics: acceleration
gravitation
coupling
nonlinear
field theory: scalar
quintessence
cosmological constant

References(46)

Figures(0)

Measurements of $\Omega$ and $\Lambda$ from 42 High Redshift Supernovae

Supernova Cosmology Project

Collaboration

•

S. Perlmutter
(
- UC, Berkeley, CfPA
)

et al.

- Astrophys.J. 517 (1999) 565-586
•
e-Print:
- astro-ph/9812133
•
DOI:
- 10.1086/307221

A Flat universe from high resolution maps of the cosmic microwave background radiation

Boomerang

Collaboration

•

P. de Bernardis
(
- Rome U.
)

et al.

- Nature 404 (2000) 955-959
•
e-Print:
- astro-ph/0004404
•
DOI:
- 10.1038/35010035

Observational evidence from supernovae for an accelerating universe and a cosmological constant

et al.

- Astron.J. 116 (1998) 1009-1038
•
e-Print:
- astro-ph/9805201
•
DOI:
- 10.1086/300499

First year Wilkinson Microwave Anisotropy Probe (WMAP) observations: Preliminary maps and basic results

WMAP

Collaboration

•

C.L. Bennett

et al.

- Astrophys.J.Suppl. 148 (2003) 1-27
•
e-Print:
- astro-ph/0302207
•
DOI:
- 10.1086/377253

A measurement by Boomerang of multiple peaks in the angular power spectrum of the cosmic microwave background

Boomerang

Collaboration

•

C.B. Netterfield
(
- Toronto U.
)

et al.

- Astrophys.J. 571 (2002) 604-614
•
e-Print:
- astro-ph/0104460
•
DOI:
- 10.1086/340118

DASI first results: A Measurement of the cosmic microwave background angular power spectrum

et al.

- Astrophys.J. 568 (2002) 38-45
•
e-Print:
- astro-ph/0104489
•
DOI:
- 10.1086/338879

Cosmology from MAXIMA-1, BOOMERANG and COBE / DMR CMB observations

Boomerang

Collaboration

•

Andrew H. Jaffe
(
)

et al.

- Phys.Rev.Lett. 86 (2001) 3475-3479
•
e-Print:
- astro-ph/0007333
•
DOI:
- 10.1103/PhysRevLett.86.3475

Cosmological parameters from the first results of BOOMERANG

Boomerang

Collaboration

•

Andrew E. Lange
(
- Caltech
)

et al.

- Phys.Rev.D 63 (2001) 042001
•
e-Print:
- astro-ph/0005004
•
DOI:
- 10.1103/PhysRevD.63.042001

A measurement of omega from the North American test flight of BOOMERANG

Boomerang

Collaboration

•

A. Melchiorri
(
- Rome U. and
- Rome U., Tor Vergata and
- Geneva U.
)

et al.

- Astrophys.J.Lett. 536 (2000) L63-L66
•
e-Print:
- astro-ph/9911445
•
DOI:
- 10.1086/312744

First year Wilkinson Microwave Anisotropy Probe (WMAP) observations: Determination of cosmological parameters

WMAP

Collaboration

•

D.N. Spergel

et al.

- Astrophys.J.Suppl. 148 (2003) 175-194
•
e-Print:
- astro-ph/0302209
•
DOI:
- 10.1086/377226

The 2dF Galaxy Redshift Survey: The Bias of galaxies and the density of the Universe

et al.

- Mon.Not.Roy.Astron.Soc. 335 (2002) 432
•
e-Print:
- astro-ph/0112161
•
DOI:
- 10.1046/j.1365-8711.2002.05620.x

Gravity assisted dark energy dominance and cosmic acceleration

- Phys.Lett.B 599 (2004) 137-142
•
e-Print:
- astro-ph/0403622
•
DOI:
- 10.1016/j.physletb.2004.08.045

A Dynamical approach to the cosmological constant

- Phys.Rev.Lett. 92 (2004) 211302
•
e-Print:
- hep-th/0306108
•
DOI:
- 10.1103/PhysRevLett.92.211302

Realistic cosmological model with dynamical cancellation of vacuum energy

A.D. Dolgov
(
- INFN, Ferrara and
- Moscow, ITEP and
- Tokyo U., RESCEU
)
,
Masahiro Kawasaki
(
- Tokyo U., RESCEU
)

e-Print:
- astro-ph/0307442

Extended quintessence with an exponential coupling

Valeria Pettorino
(
- Naples U. and
- INFN, Naples
)
,
Carlo Baccigalupi
(
- SISSA, Trieste and
- INFN, Trieste
)
,
Gianpiero Mangano
(
- Naples U. and
- INFN, Naples
)

- JCAP 01 (2005) 014
•
e-Print:
- astro-ph/0412334
•
DOI:
- 10.1088/1475-7516/2005/01/014

Is Cosmic Speed-Up Due to New Gravitational Physics?

Sean M. Carroll
(
- Chicago U., EFI and
- Chicago U. and
- Chicago U., KICP
)
,
Vikram Duvvuri
(
- Chicago U., EFI and
- Chicago U. and
- Chicago U., KICP
)
,
Mark Trodden
(
- Syracuse U.
)
,
Michael S. Turner
(
- Chicago U., EFI and
- Chicago U. and
- Chicago U., KICP and
- Chicago U., Astron. Astrophys. Ctr. and
- Fermilab
)

- Phys.Rev.D 70 (2004) 043528
•
e-Print:
- astro-ph/0306438
•
DOI:
- 10.1103/PhysRevD.70.043528

Quintessence without scalar fields

Salvatore Capozziello
(
- Salerno U. and
- INFN, Naples
)
,
Sante Carloni
(
- Salerno U. and
- INFN, Naples
)
,
Antonio Troisi
(
- Salerno U. and
- INFN, Naples
)

- Recent Res.Dev.Astron.Astrophys. 1 (2003) 625
•
e-Print:
- astro-ph/0303041

Curvature quintessence

Salvatore Capozziello
(
- INFN, Naples and
- Salerno U.
)

- Int.J.Mod.Phys.D 11 (2002) 483-492
•
e-Print:
- gr-qc/0201033
•
DOI:
- 10.1142/S0218271802002025

Curvature quintessence matched with observational data

- Int.J.Mod.Phys.D 12 (2003) 1969-1982
•
e-Print:
- astro-ph/0307018
•
DOI:
- 10.1142/S0218271803004407

One-loop f(R) gravity in de Sitter universe

Guido Cognola
(
- Trento U. and
- INFN, Trento
)
,
Emilio Elizalde
(
- Barcelona, IEEC and
- CSIC, Catalunya
)
,
Shin'ichi Nojiri
(
- Japan, Natl. Defence Academy
)
,
Sergei D. Odintsov
(
- Barcelona, IEEC and
- CSIC, Catalunya and
- ICREA, Barcelona
)
,
Sergio Zerbini
(
- Trento U. and
- INFN, Trento
)

- JCAP 02 (2005) 010
•
e-Print:
- hep-th/0501096
•
DOI:
- 10.1088/1475-7516/2005/02/010

The Universality of vacuum Einstein equations with cosmological constant

- Class.Quant.Grav. 11 (1994) 1505-1517
•
e-Print:
- gr-qc/9303007
•
DOI:
- 10.1088/0264-9381/11/6/015

Modified gravity with negative and positive powers of the curvature: Unification of the inflation and of the cosmic acceleration

- Phys.Rev.D 68 (2003) 123512
•
e-Print:
- hep-th/0307288
•
DOI:
- 10.1103/PhysRevD.68.123512

Modified gravity with ln R terms and cosmic acceleration

- Gen.Rel.Grav. 36 (2004) 1765-1780
•
e-Print:
- hep-th/0308176
•
DOI:
- 10.1023/B:GERG.0000035950.40718.48

The Minimal curvature of the universe in modified gravity and conformal anomaly resolution of the instabilities

- Mod.Phys.Lett.A 19 (2004) 627-638
•
e-Print:
- hep-th/0310045
•
DOI:
- 10.1142/S0217732304013295

Can modified gravity explain accelerated cosmic expansion?

A.D. Dolgov
(
- INFN, Ferrara and
- Moscow, ITEP and
- Tokyo U., RESCEU
)
,
Masahiro Kawasaki
(
- Tokyo U., RESCEU
)

- Phys.Lett.B 573 (2003) 1-4
•
e-Print:
- astro-ph/0307285
•
DOI:
- 10.1016/j.physletb.2003.08.039

1-25 of 46
1
2
25 / page