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2009

Hiding dark energy transitions at low redshift

Mortonson, Michael J., Hu, Wayne, Huterer, Dragan

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We show that it is both observationally allowable and theoretically possible to have large fluctuations in the dark energy equation of state as long as they occur at ultra-low redshifts z<0.02.

These fluctuations would masquerade as a local transition in the Hubble rate of a few percent or less and escape even future, high precision, high redshift measurements of the expansion history and structure.
Scalar field models that exhibit this behavior have a sharp feature in the potential that the field traverses within a fraction of an e-fold of the present.
The equation of state parameter can become arbitrarily large if a sharp dip or bump in the potential causes the kinetic and potential energy of the field to both be large and have opposite sign.

Hiding dark energy transitions at low redshift · Around

Built on

Astrophys. J. 503
I. Zehavi, A. G. Riess, R. P. Kirshner and A. Dekel, · 1998
Earlier work this paper cites.
JETP Lett. 68
A. A. Starobinsky, · 1998
Earlier work this paper cites.
Astrophys. J. 504
D. J. Eisenstein, W. Hu and M. Tegmark, · 1998
Earlier work this paper cites.
Phys. Rev. D60
D. Huterer and M. S. Turner, · 1999
Earlier work this paper cites.
Mon. Not. Roy. Astron. Soc. 306
T. Nakamura and T. Chiba, · 1999
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