2008

Observational Evidence for Cosmological-Scale Extra Dimensions

Afshordi, Niayesh, Geshnizjani, Ghazal, Khoury, Justin

Understand

We present a case that current observations may already indicate new gravitational physics on cosmological scales.

The excess of power seen in the Lyman-alpha forest and small-scale CMB experiments, the anomalously large bulk flows seen both in peculiar velocity surveys and in kinetic SZ, and the higher ISW cross-correlation all indicate that structure may be more evolved than expected from LCDM.
We argue that these observations find a natural explanation in models with infinite-volume (or, at least, cosmological-size) extra dimensions, where the graviton is a resonance with a tiny width.
The longitudinal mode of the graviton mediates an extra scalar force which speeds up structure formation at late times, thereby accounting for the above anomalies.

Built on

R. K. Sachs and A. M. Wolfe, “Perturbations of a cosmological model and angular variations of the microwave background,” Astrophys. J. 147
1967
Earlier work this paper cites.
H. van Dam and M. J. G. Veltman, “Massive And Massless Yang-Mills And Gravitational Fields,” Nucl. Phys. B 22
1970
Earlier work this paper cites.
A. I. Vainshtein, “To the problem of nonvanishing gravitation mass,” Phys. Lett. B 39
1972
Earlier work this paper cites.
R. G. Crittenden and N. Turok, “Looking for Λ \Lambda with the Rees-Sciama Effect,” Phys. Rev. Lett. 76
1996
Earlier work this paper cites.
A. G. Riess et al
1999
Earlier work this paper cites.
G. R. Dvali, G. Gabadadze and M. Porrati, “4D gravity on a brane in 5D Minkowski space,” Phys. Lett. B 485
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. 85
2000
Earlier work this paper cites.
A. Lewis, A. Challinor and A. Lasenby, “Efficient Computation of CMB anisotropies in closed FRW models,” Astrophys. J. 538
2000
Earlier work this paper cites.
C. Deffayet, “Cosmology on a brane in Minkowski bulk,” Phys. Lett. B 502
2001
Earlier work this paper cites.
C. Deffayet, G. R. Dvali, G. Gabadadze and A. I. Vainshtein, “Nonperturbative continuity in graviton mass versus perturbative discontinuity,” Phys. Rev. D 65
2002
Earlier work this paper cites.
M. Porrati, “Fully covariant van Dam-Veltman-Zakharov discontinuity, and absence thereof,” Phys. Lett. B 534
2002
Earlier work this paper cites.
E. Komatsu and U. Seljak, “The Sunyaev-Zel’dovich angular power spectrum as a probe of cosmological parameters,” Mon. Not. Roy. Astron. Soc. 336
2002
Earlier work this paper cites.
D. N. Spergel et al
2003
Earlier work this paper cites.
S. L. Dubovsky and V. A. Rubakov, “Brane-induced gravity in more than one extra dimensions: Violation of equivalence principle and ghost,” Phys. Rev. D 67
2003
Earlier work this paper cites.
N. Arkani-Hamed, H. Georgi and M.D. Schwartz, “Effective field theory for massive gravitons and gravity in theory space,” Annals Phys. 305
2003
Earlier work this paper cites.
M. A. Luty, M. Porrati and R. Rattazzi, “Strong interactions and stability in the DGP model,” JHEP 0309
2003
Earlier work this paper cites.
G. Dvali, A. Gruzinov and M. Zaldarriaga, “The accelerated universe and the Moon,” Phys. Rev. D 68
2003
Earlier work this paper cites.
D. N. Spergel et al
2003
Earlier work this paper cites.
A. C. S. Readhead et al
2004
Earlier work this paper cites.
J. Khoury and A. Weltman, “Chameleon fields: Awaiting surprises for tests of gravity in space,” Phys. Rev. Lett. 93
2004
Earlier work this paper cites.
A. Lue, R. Scoccimarro and G. D. Starkman, “Probing Newton’s constant on vast scales: DGP gravity, cosmic acceleration and large scale structure,” Phys. Rev. D 69
2004
Earlier work this paper cites.

Similar

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2004
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A. Nicolis and R. Rattazzi, “Classical and quantum consistency of the DGP model,” JHEP 0406
2004
Cited alongside, same era.
N. Afshordi, “Integrated Sachs-Wolfe effect in Cross-Correlation: The Observer’s Manual,” Phys. Rev. D 70
2004
Cited alongside, same era.
P. McDonald et al
2005
Cited alongside, same era.
P. Brax, C. van de Bruck, A. C. Davis, J. Khoury and A. Weltman, “Detecting dark energy in orbit: The cosmological chameleon,” Phys. Rev. D 70
2005
Cited alongside, same era.
A. Gruzinov, “On the graviton mass,” New Astron. 10
2005
Cited alongside, same era.
S. M. Carroll, A. De Felice and M. Trodden, “Can we be tricked into thinking that w is less than -1?,” Phys. Rev. D 71
2005
Cited alongside, same era.
D. H. Lyth, K. A. Malik and M. Sasaki, “A general proof of the conservation of the curvature perturbation,” JCAP 0505
2005
Cited alongside, same era.
P. McDonald et al
2006
Cited alongside, same era.
U. Seljak, A. Slosar and P. McDonald, “Cosmological parameters from combining the Lyman-alpha forest with CMB, galaxy clustering and SN constraints,” JCAP 0610
2006
Cited alongside, same era.
S. S. Gubser and J. Khoury, “Scalar self-interactions loosen constraints from fifth force searches,” Phys. Rev. D 70
2006
Cited alongside, same era.
M. Ishak, A. Upadhye and D. N. Spergel, “Probing cosmic acceleration beyond the equation of state: Distinguishing between dark energy and modified gravity models,” Phys. Rev. D 74
2006
Cited alongside, same era.

Then

K. S. Dawson, W. L. Holzapfel, J. E. Carlstrom, M. Joy and S. J. LaRoque, “Final Results from the BIMA CMB Anistropy Survey and Search for Signature of the SZ effect,” Astrophys. J. 647
2006
Later among the works it cites.
C. Copi, D. Huterer, D. Schwarz and G. Starkman, “The Uncorrelated Universe: Statistical Anisotropy and the Vanishing Angular Correlation Function in WMAP Years 1-3,” Phys. Rev. D 75
2007
Later among the works it cites.
I. Sawicki, Y. S. Song and W. Hu, “Near-horizon solution for DGP perturbations,” Phys. Rev. D 75
2007
Later among the works it cites.
Y. S. Song, I. Sawicki and W. Hu, “Large-scale tests of the DGP model,” Phys. Rev. D 75
2007
Later among the works it cites.
S. Wang, L. Hui, M. May and Z. Haiman, “Is Modified Gravity Required by Observations? An Empirical Consistency Test of Dark Energy Models,” Phys. Rev. D 76
Original
2007
Later among the works it cites.
N. Kaloper and D. Kiley, “Charting the Landscape of Modified Gravity,” JHEP 0705
2007
Later among the works it cites.
W. Hu and I. Sawicki, “A Parameterized Post-Friedmann Framework for Modified Gravity,” Phys. Rev. D 76
Original
2007
Later among the works it cites.
G. Dvali, S. Hofmann and J. Khoury, “Degravitation of the cosmological constant and graviton width,” Phys. Rev. D 76
2007
Later among the works it cites.
G. Dvali, G. Gabadadze, O. Pujolas and R. Rahman, “Domain walls as probes of gravity,” Phys. Rev. D 75
2007
Later among the works it cites.
R. Gregory, N. Kaloper, R. C. Myers and A. Padilla, “A New Perspective on DGP Gravity,” JHEP 0710
Original
2007
Later among the works it cites.
N. Afshordi, Y. T. Lin, D. Nagai and A. J. R. Sanderson, “Missing Thermal Energy of the Intracluster Medium,” Mon. Not. Roy. Astron. Soc. 378
2007
Later among the works it cites.
S. Ho, C. Hirata, N. Padmanabhan, U. Seljak and N. Bahcall, “Correlation of CMB with large-scale structure: I. ISW Tomography and Cosmological Implications,” Phys. Rev. D 78
2008
Closest in time.
T. Giannantonio, R. Scranton, R. G. Crittenden, R. C. Nichol, S. P. Boughn, A. D. Myers and G. T. Richards, “Combined analysis of the integrated Sachs-Wolfe effect and cosmological implications,” Phys. Rev. D 77
Original
2008
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Y. S. Song, “Large Scale Structure Formation of normal branch in DGP brane world model,” Phys. Rev. D 77
Original
2008
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C. de Rham, S. Hofmann, J. Khoury and A. J. Tolley, “Cascading Gravity and Degravitation,” JCAP 0802
Original
2008
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G. Dvali, O. Pujolas and M. Redi, “Non Pauli-Fierz Massive Gravitons,” Phys. Rev. Lett. 101
Original
2008
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J. B. R. Battat, C. W. Stubbs and J. F. Chandler, “Solar system constraints on the Dvali-Gabadadze-Porrati braneworld theory of gravity,” Phys. Rev. D 78
Original
2008
Closest in time.
E. Bertschinger and P. Zukin, “Distinguishing Modified Gravity from Dark Energy,” Phys. Rev. D 78
Original
2008
Closest in time.
S. F. Daniel, R. R. Caldwell, A. Cooray and A. Melchiorri, “Large Scale Structure as a Probe of Gravitational Slip,” Phys. Rev. D 77
Original
2008
Closest in time.
L. Hui and K. P. Parfrey, “The Evolution of Bias - Generalized,” Phys. Rev. D 77
Original
2008
Closest in time.
C. de Rham, G. Dvali, S. Hofmann, J. Khoury, O. Pujolas, M. Redi and A. J. Tolley, “Cascading Gravity: Extending the Dvali-Gabadadze-Porrati Model to Higher Dimension,” Phys. Rev. Lett. 100
Original
2072
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