Unified dark energy and dark matter from a scalar field different from quintessence - INSPIRE

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Unified dark energy and dark matter from a scalar field different from quintessence

Changjun Gao
(
- Beijing Observ.
)
,
Martin Kunz
(
- Sussex U. and
- Geneva U., Dept. Theor. Phys.
)
,
Andrew R. Liddle
(
- Sussex U.
)
,
David Parkinson
(
- Sussex U.
)

Dec, 2009

10 pages

Published in:

Phys.Rev.D 81 (2010) 043520

e-Print:

0912.0949 [astro-ph.CO]

DOI:

10.1103/PhysRevD.81.043520

View in:

ADS Abstract Service

reference search59 citations

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Abstract: (arXiv)

We explore unification of dark matter and dark energy in a theory containing a scalar field of non-Lagrangian type, obtained by direct insertion of a kinetic term into the energy-momentum tensor. This scalar is different from quintessence, having an equation of state between -1 and 0 and a zero sound speed in its rest frame. We solve the equations of motion for an exponential potential via a rewriting as an autonomous system, and demonstrate the observational viability of the scenario, for sufficiently small exponential potential parameter \lambda, by comparison to a compilation of kinematical cosmological data.

Note:

10 pages RevTeX4 with 5 figures incorporated

95.36.+x
98.80.Cq
98.65.Dx
field theory: scalar
tensor: energy-momentum
velocity: acoustic
quintessence
dark matter
dark energy
equation of state

References(38)

Figures(6)

Chiral Four-Dimensional Heterotic Strings from Selfdual Lattices

W. Lerche
(
- CERN
)
,
D. Lust
(
- Munich, Max Planck Inst.
)
,
A.N. Schellekens
(
- CERN
)

- Nucl.Phys.B 287 (1987) 477,
•
DOI:
- 10.1016/0550-3213(87)90115-5

Quantization of four form fluxes and dynamical neutralization of the cosmological constant

- JHEP 06 (2000) 006
•
e-Print:
- hep-th/0004134
•
DOI:
- 10.1088/1126-6708/2000/06/006

The Anthropic landscape of string theory

Leonard Susskind
(
- Stanford U., Phys. Dept.
)

•
e-Print:
- hep-th/0302219

The Statistics of string / M theory vacua

Michael R. Douglas
(
- Rutgers U., Piscataway and
- IHES, Bures-sur-Yvette
)

- JHEP 05 (2003) 046
•
e-Print:
- hep-th/0303194
•
DOI:
- 10.1088/1126-6708/2003/05/046

Dynamics of dark energy

Edmund J. Copeland
(
- Nottingham U.
)
,
M. Sami
(
- Jamia Millia Islamia
)
,
Shinji Tsujikawa
(
- Gunma Coll. Tech.
)

- Int.J.Mod.Phys.D 15 (2006) 1753-1936
•
e-Print:
- hep-th/0603057
•
DOI:
- 10.1142/S021827180600942X

Five-Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Cosmological Interpretation

WMAP

Collaboration

•

E. Komatsu
(
- Texas U.
)

et al.

- Astrophys.J.Suppl. 180 (2009) 330-376
•
e-Print:
- 0803.0547
•
DOI:
- 10.1088/0067-0049/180/2/330

Dark Energy and Modified Gravity

- Dark Energy: Observational & Theoretical Approaches, ed. P Ruiz-Lapuente (Cambridge UP, 2010), pp48 - 91
•
e-Print:
- 0811.4132

Unified dark energy models: A Phenomenological approach

Vincenzo F. Cardone
(
- Salerno U. and
- INFN, Salerno
)
,
A. Troisi
(
- Salerno U. and
- INFN, Salerno
)
,
S. Capozziello
(
- Salerno U. and
- INFN, Salerno
)

- Phys.Rev.D 69 (2004) 083517
•
e-Print:
- astro-ph/0402228
•
DOI:
- 10.1103/PhysRevD.69.083517

Dark Energy as a Modification of the Friedmann Equation

Gia Dvali
(
- New York U.
)
,
Michael S. Turner
(
- Chicago U., Astron. Astrophys. Ctr. and
- Chicago U., KICP and
- Chicago U., EFI and
- Fermilab
)

e-Print:
- astro-ph/0301510

Cosmological implications and structure formation from a time varying vacuum

Spyros Basilakos

- Mon.Not.Roy.Astron.Soc. 395 (2009) 2347
•
e-Print:
- 0903.0452
•
DOI:
- 10.1111/j.1365-2966.2009.14713.x

- Mon.Not.Roy.Astron.Soc. 395 2009

Can the clustered dark matter and the smooth dark energy arise from the same scalar field?

T. Padmanabhan
(
- IUCAA, Pune
)
,
T.Roy Choudhury
(
- IUCAA, Pune
)

- Phys.Rev.D 66 (2002) 081301
•
e-Print:
- hep-th/0205055
•
DOI:
- 10.1103/PhysRevD.66.081301

Purely kinetic k-essence as unified dark matter

Robert J. Scherrer
(
- Vanderbilt U.
)

- Phys.Rev.Lett. 93 (2004) 011301
•
e-Print:
- astro-ph/0402316
•
DOI:
- 10.1103/PhysRevLett.93.011301

Unified Dark Matter in Scalar Field Cosmologies

Daniele Bertacca
(
- Padua U. and
- INFN, Padua
)
,
Sabino Matarrese
(
- Padua U. and
- INFN, Padua
)
,
Massimo Pietroni
(
- INFN, Padua
)

- Mod.Phys.Lett.A 22 (2007) 2893-2907
•
e-Print:
- astro-ph/0703259
•
DOI:
- 10.1142/S0217732307025893

Dark fluid: A Complex scalar field to unify dark energy and dark matter

Alexandre Arbey
(
- Lyon Observ. and
- Mt. Allison U.
)

- Phys.Rev.D 74 (2006) 043516
•
e-Print:
- astro-ph/0601274
•
DOI:
- 10.1103/PhysRevD.74.043516

An Alternative to quintessence

Alexander Yu. Kamenshchik
(
- Landau Inst. and
- Landau Network Centro Volta
)
,
Ugo Moschella
(
- Insubria U., Como and
- INFN, Milan
)
,
Vincent Pasquier
(
- Saclay
)

- Phys.Lett.B 511 (2001) 265-268
•
e-Print:
- gr-qc/0103004
•
DOI:
- 10.1016/S0370-2693(01)00571-8

The Revival of the unified dark energy - dark matter model?

M.C. Bento
(
- Lisbon, IST
)
,
O. Bertolami
(
- Lisbon, IST
)
,
Anjan Ananda Sen
(
- Lisbon, IST and
- CFIF, Lisbon
)

- Phys.Rev.D 70 (2004) 083519
•
e-Print:
- astro-ph/0407239
•
DOI:
- 10.1103/PhysRevD.70.083519

Affine equation of state from quintessence and k-essence fields

Claudia Quercellini
(
- Rome U., Tor Vergata
)
,
Marco Bruni
(
- Rome U., Tor Vergata and
- INFN, Rome and
- Portsmouth U., ICG
)
,
Amedeo Balbi
(
- Rome U., Tor Vergata and
- INFN, Rome
)

- Class.Quant.Grav. 24 (2007) 5413-5426
•
e-Print:
- 0706.3667
•
DOI:
- 10.1088/0264-9381/24/22/006

Aetherizing Lambda: Barotropic Fluids as Dark Energy

Eric V. Linder
(
- UC, Berkeley
)
,
Robert J. Scherrer
(
- Vanderbilt U.
)

- Phys.Rev.D 80 (2009) 023008
•
e-Print:
- 0811.2797
•
DOI:
- 10.1103/PhysRevD.80.023008

Unified Dark Matter models with fast transition

Oliver F. Piattella
(
- Insubria U., Como and
- INFN, Milan and
- Portsmouth U., ICG
)
,
Daniele Bertacca
(
- Portsmouth U., ICG and
- Padua U. and
- INFN, Padua
)
,
Marco Bruni
(
- Portsmouth U., ICG
)
,
Davide Pietrobon
(
- Portsmouth U., ICG and
- Rome U., Tor Vergata
)

- JCAP 01 (2010) 014
•
e-Print:
- 0911.2664
•
DOI:
- 10.1088/1475-7516/2010/01/014

A Dynamical solution to the problem of a small cosmological constant and late time cosmic acceleration

C. Armendariz-Picon
(
- Munich U.
)
,
Viatcheslav F. Mukhanov
(
- Munich U.
)
,
Paul J. Steinhardt
(
- Princeton U.
)

- Phys.Rev.Lett. 85 (2000) 4438-4441
•
e-Print:
- astro-ph/0004134
•
DOI:
- 10.1103/PhysRevLett.85.4438

Essentials of k essence

C. Armendariz-Picon
(
- Munich U.
)
,
Viatcheslav F. Mukhanov
(
- Munich U.
)
,
Paul J. Steinhardt
(
- Princeton U.
)

- Phys.Rev.D 63 (2001) 103510
•
e-Print:
- astro-ph/0006373
•
DOI:
- 10.1103/PhysRevD.63.103510

Tachyon condensation on the brane anti-brane system

Ashoke Sen
(
- Harish-Chandra Res. Inst.
)

- JHEP 08 (1998) 012
•
e-Print:
- hep-th/9805170
•
DOI:
- 10.1088/1126-6708/1998/08/012

Rolling tachyon

Ashoke Sen
(
- Harish-Chandra Res. Inst. and
- Penn State U.
)

- JHEP 04 (2002) 048
•
e-Print:
- hep-th/0203211
•
DOI:
- 10.1088/1126-6708/2002/04/048

Exponential potentials and cosmological scaling solutions

- Phys.Rev.D 57 (1998) 4686-4690
•
e-Print:
- gr-qc/9711068
•
DOI:
- 10.1103/PhysRevD.57.4686

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