Fetching the paper…

Reading the bibliography…

2008

"Detuned" f(R) gravity and dark energy

Deruelle, Nathalie, Sasaki, Misao, Sendouda, Yuuiti

Original
PDF
Post on X

Understand

In gravity theories derived from a f(R) Lagrangian, matter is usually supposed to be minimally coupled to the metric, which hence defines a ``Jordan frame.'' However, since the field equations are fourth order, gravity possesses an extra degree of freedom on top of the standard graviton, as is manifest from its equivalent description in the conformally related, Einstein, frame.

We introduce explicitly this extra scalar degree of freedom in the action and couple it to matter, so that the original metric no longer defines a Jordan frame.
This ``detuning'' puts f(R) gravity into a wider class of scalar--tensor theories.
We argue that a ``chameleon-like'' detuning tracing the background matter density may provide purely gravitational models which account for the present acceleration of the universe and evade local gravity constraints.

"Detuned" f(R) gravity and dark energy · Around

Built on

A. A. Starobinsky, Phys. Lett. B 91
1980
Earlier work this paper cites.
P. Teyssandier and Ph. Tourrenc, J. Math. Phys. 24
1983
Earlier work this paper cites.
P. G. Ferreira and M. Joyce, Phys. Rev. D 58
1998
Earlier work this paper cites.
J. R. Ellis, S. Kalara, K. A. Olive, and C. Wetterich, Phys. Lett. B 228
2000
Earlier work this paper cites.
I. Zlatev, L. M. Wang, and P. J. Steinhardt, Phys. Rev. Lett. 82
2000
Earlier work this paper cites.
T. Damour and G. Esposito-Farèse, Class. Quant. Grav. 9
Original
2003
Earlier work this paper cites.
B. Bertotti, L. Iess, and P. Tortora, Nature 425
2003
Earlier work this paper cites.
A. D. Dolgov and M. Kawasaki, Phys. Lett. B 573
2003
Earlier work this paper cites.

Similar

S. Capozziello, S. Carloni, and A. Troisi, Recent Res. Dev. Astron. Astrophys. 1
2004
Cited alongside, same era.
B. Ratra and P. J. E. Peebles, Phys. Rev. D 37
2006
Cited alongside, same era.
G. Esposito-Farèse and D. Polarski, Phys. Rev. D 63
2006
Cited alongside, same era.
A. G. Riess et al
2007
Cited alongside, same era.
T. Buchert, AIP Conf. Proc. 910
2007
Cited alongside, same era.
O. Bertolami, C. G. Boehmer, T. Harko, and F. S. N. Lobo, Phys. Rev. D 75
Original
2007
Cited alongside, same era.
D. N. Vollick, Phys. Rev. D 68

Then

J. Khoury and A. Weltman, Phys. Rev. Lett. 93
Original
2007
Later among the works it cites.
L. Amendola, Phys. Rev. D 60
2007
Later among the works it cites.
G. Cognola, E. Elizalde, S. Nojiri, S. D. Odintsov, L. Sebastiani, and S. Zerbini, Phys. Rev. D 77
Original
2008
Closest in time.
N. Deruelle, M. Sasaki, and Y. Sendouda, Prog. Theor. Phys. 119
Original
2008
Closest in time.
T. Chiba, Phys. Lett. B 575
Original
2008
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…

2007

Cited alongside, same era.

G. Magnano and L. M. Sokołowski, Phys. Rev. D 50

2007

Cited alongside, same era.

S. Weinberg, arXiv:astro-ph/0005265

Cited in the paper.

S. Tsujikawa, K. Uddin, S. Mizuno, R. Tavakol, and J. Yokoyama, arXiv:0803.1106 [astro-ph]

Cited in the paper.

L. Amendola, R. Gannouji, D. Polarski, and S. Tsujikawa, Phys. Rev. D 75

2008

Closest in time.

W. Hu and I. Sawicki, Phys. Rev. D 76

2041

Closest in time.