2010

Dust of Dark Energy

Lim, Eugene A., Sawicki, Ignacy, Vikman, Alexander

Understand

We introduce a novel class of field theories where energy always flows along timelike geodesics, mimicking in that respect dust, yet which possess non-zero pressure.

This theory comprises two scalar fields, one of which is a Lagrange multiplier enforcing a constraint between the other's field value and derivative.
We show that this system possesses no wave-like modes but retains a single dynamical degree of freedom.
Thus, the sound speed is always identically zero on all backgrounds.

Built on

E. J. Copeland, M. Sami, and S. Tsujikawa, “Dynamics of dark energy,” Int. J. Mod. Phys
1936
Earlier work this paper cites.
B. F. Schutz, “Perfect fluids in general relativity: Velocity potentials and a variational principle,” Phys. Rev. D
1970
Earlier work this paper cites.
J. D. Brown and K. V. Kuchar, “Dust as a standard of space and time in canonical quantum gravity,” Phys. Rev
1995
Earlier work this paper cites.
C. Armendariz-Picon, T. Damour, and V. F. Mukhanov, “k-inflation,” Phys. Lett
1999
Earlier work this paper cites.
J. Garriga and V. F. Mukhanov, “Perturbations in k-inflation,” Phys. Lett
1999
Earlier work this paper cites.
C. Armendariz-Picon, V. F. Mukhanov, and P. J. Steinhardt, “A dynamical solution to the problem of a small cosmological constant and late-time cosmic acceleration,” Phys. Rev. Lett
2000
Earlier work this paper cites.
B. Boisseau, G. Esposito-Farese, D. Polarski, and A. A. Starobinsky, “Reconstruction of a scalar-tensor theory of gravity in an accelerating universe,” Phys. Rev. Lett
2000
Earlier work this paper cites.
A. Y. Kamenshchik, U. Moschella, and V. Pasquier, “An alternative to quintessence,” Phys. Lett
2001
Earlier work this paper cites.
C. Armendariz-Picon, V. F. Mukhanov, and P. J. Steinhardt, “Essentials of k-essence,” Phys. Rev
2001
Earlier work this paper cites.
T. Padmanabhan and T. R. Choudhury, “Can the clustered dark matter and the smooth dark energy arise from the same scalar field?,” Phys. Rev
2002
Earlier work this paper cites.
G. N. Felder, L. Kofman, and A. Starobinsky, “Caustics in tachyon matter and other Born-Infeld scalars,” JHEP
2002
Earlier work this paper cites.
A. Sen, “Tachyon matter,” JHEP
2002
Earlier work this paper cites.
A. Sen, “Rolling Tachyon,” JHEP
2002
Earlier work this paper cites.
R. R. Caldwell, “A Phantom Menace?,” Phys. Lett
2002
Earlier work this paper cites.
S. M. Carroll, M. Hoffman, and M. Trodden, “Can the dark energy equation-of-state parameter w be less than -1?,” Phys. Rev
2003
Earlier work this paper cites.
R. J. Scherrer, “Purely kinetic k-essence as unified dark matter,” Phys. Rev. Lett
2004
Earlier work this paper cites.
M. C. Bento, O. Bertolami, and A. A. Sen, “The revival of the unified dark energy - dark matter model?,” Phys. Rev
2004
Earlier work this paper cites.
N. Arkani-Hamed, H.-C. Cheng, M. A. Luty, and S. Mukohyama, “Ghost condensation and a consistent infrared modification of gravity,” JHEP
2004
Earlier work this paper cites.
J. M. Cline, S. Jeon, and G. D. Moore, “The phantom menaced: Constraints on low-energy effective ghosts,” Phys. Rev
2004
Earlier work this paper cites.

Similar

T. Jacobson and D. Mattingly, “Einstein-aether waves,” Phys. Rev
2004
Cited alongside, same era.
S. M. Carroll and E. A. Lim, “Lorentz-violating vector fields slow the universe down,” Phys. Rev
2004
Cited alongside, same era.
E. A. Lim, “Can we see Lorentz-violating vector fields in the CMB?,” Phys. Rev
2005
Cited alongside, same era.
Cambridge University Press, 2005
V. Mukhanov, Physical foundations of cosmology · 2005
Cited alongside, same era.
A. Vikman, “Can dark energy evolve to the phantom?,” Phys. Rev
2005
Cited alongside, same era.
R. R. Caldwell and M. Doran, “Dark-energy evolution across the cosmological-constant boundary,” Phys. Rev
2005
Cited alongside, same era.
W. Hu, “Crossing the phantom divide: Dark energy internal degrees of freedom,” Phys. Rev
2005
Cited alongside, same era.
G.-B. Zhao, J.-Q. Xia, M. Li, B. Feng, and X. Zhang, “Perturbations of the Quintom Models of Dark Energy and the Effects on Observations,” Phys. Rev
2005
Cited alongside, same era.
B. Feng, X.-L. Wang, and X.-M. Zhang, “Dark Energy Constraints from the Cosmic Age and Supernova,” Phys. Lett
2005
Cited alongside, same era.
S. Nojiri and S. D. Odintsov, “Inhomogeneous equation of state of the universe: Phantom era, future singularity and crossing the phantom barrier,” Phys. Rev
2005
Cited alongside, same era.
A. Arbey, “Dark fluid: A complex scalar field to unify dark energy and dark matter,” Phys. Rev
2006
Cited alongside, same era.
S. Capozziello, S. Nojiri, and S. D. Odintsov, “Unified phantom cosmology: inflation, dark energy and dark matter under the same standard,” Phys. Lett
2006
Cited alongside, same era.

Then

R. Gannouji, D. Polarski, A. Ranquet, and A. A. Starobinsky, “Scalar-tensor models of normal and phantom dark energy,” JCAP
2006
Later among the works it cites.
P. Creminelli, M. A. Luty, A. Nicolis, and L. Senatore, “Starting the universe: Stable violation of the null energy condition and non-standard cosmologies,” JHEP
2006
Later among the works it cites.
S. Capozziello, V. F. Cardone, E. Elizalde, S. Nojiri, and S. D. Odintsov, “Observational constraints on dark energy with generalized equations of state,” Phys. Rev
2006
Later among the works it cites.
D. Bertacca, S. Matarrese, and M. Pietroni, “Unified dark matter in scalar field cosmologies,” Mod. Phys. Lett
2007
Later among the works it cites.
C. Quercellini, M. Bruni, and A. Balbi, “Affine equation of state from quintessence and k-essence fields,” Class. Quant. Grav
Original
2007
Later among the works it cites.
N. Arkani-Hamed, H.-C. Cheng, M. A. Luty, S. Mukohyama, and T. Wiseman, “Dynamics of Gravity in a Higgs Phase,” JHEP
2007
Later among the works it cites.
R. P. Woodard, “Avoiding dark energy with 1/R modifications of gravity,” Lect. Notes Phys
2007
Later among the works it cites.
W. Hu and I. Sawicki, “Models of f(R) Cosmic Acceleration that Evade Solar-System Tests,” Phys. Rev
Original
2007
Later among the works it cites.
E. Babichev, V. Mukhanov, and A. Vikman, “k-Essence, superluminal propagation, causality and emergent geometry,” JHEP
Original
2008
Later among the works it cites.
E. V. Linder and R. J. Scherrer, “Aetherizing Lambda: Barotropic Fluids as Dark Energy,” Phys. Rev
Original
2009
Later among the works it cites.
S. Mukohyama, “Caustic avoidance in Horava-Lifshitz gravity,” JCAP
Original
2009
Later among the works it cites.
D. Blas, O. Pujolas, and S. Sibiryakov, “On the Extra Mode and Inconsistency of Horava Gravity,” JHEP
Original
2009
Later among the works it cites.
P. Horava, “Quantum Gravity at a Lifshitz Point,” Phys. Rev
Original
2009
Later among the works it cites.
P. Creminelli, G. D’Amico, J. Norena, and F. Vernizzi, “The Effective Theory of Quintessence: the w < − 1 w<-1 Side Unveiled,” JCAP
Original
2009
Later among the works it cites.
O. F. Piattella, D. Bertacca, M. Bruni, and D. Pietrobon, “Unified Dark Matter models with fast transition,” JCAP
Original
2010
Closest in time.
C. Gao, M. Kunz, A. R. Liddle, and D. Parkinson, “Unified dark energy and dark matter from a scalar field different from quintessence,” Phys. Rev
Original
2010
Closest in time.
P. Creminelli, G. D’Amico, J. Norena, L. Senatore, and F. Vernizzi, “Spherical collapse in quintessence models with zero speed of sound,” JCAP
Original
2010
Closest in time.
C. Deffayet, O. Pujolas, I. Sawicki, and A. Vikman, “Imperfect dark energy from kinetic gravity braiding,” in preparation
2010
Closest in time.

Beyond the bibliography

alphaXiv searches the wider corpus for related work and actual follow-ups.

Open on alphaXiv

alphaXiv is searching for related work…

Reading the bibliography…