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Scale of Homogeneity of the Universe from WMAP

Abstract:
We review the physics of the Grishchuck-Zel'dovich effect which describes the impact of large amplitude, super-horizon gravitational field fluctuations on the Cosmic Microwave Background anisotropy power spectrum. Using the latest determination of the spectrum by WMAP, we infer a lower limit on the present length-scale of such fluctuations of 3927 times the cosmological particle horizon (at the 95% confidence level).
Publication status:
Published

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Publisher copy:
10.1103/PhysRevD.68.127301

Authors


Castro, PG More by this author
Douspis, M More by this author
Ferreira, PG More by this author
Journal:
Phys.Rev.D
Volume:
68
Issue:
12
Pages:
127301
Publication date:
2003-09-11
DOI:
EISSN:
1089-4918
ISSN:
0556-2821
URN:
uuid:835c1436-b485-4f78-a611-a910ca647af3
Source identifiers:
207721
Local pid:
pubs:207721
Keywords:

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