Journal article

The initial conditions of the universe: how much isocurvature is allowed?

Abstract:: We investigate the constraints imposed by the current data on correlated mixtures of adiabatic and non-adiabatic primordial perturbations. We discover subtle flat directions in parameter space that tolerate large (~60%) contributions of non-adiabatic fluctuations. In particular, larger values of the baryon density and a spectral tilt are allowed. The cancellations in the degenerate directions are explored and the role of priors elucidated.

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APA Style

Bucher, M., Dunkley, J., Ferreira, P., Moodley, K., & Skordis, C. (2004). The initial conditions of the universe: how much isocurvature is allowed? Phys.Rev.Lett., 93(8), 081301.

MLA Style

Bucher, M, et al. “The Initial Conditions of the Universe: How Much Isocurvature Is Allowed?” Phys.Rev.Lett., vol. 93, no. 8, 2004, p. 081301.

Chicago Style

Bucher, M, J Dunkley, P Ferreira, K Moodley, and C Skordis. 2004. “The Initial Conditions of the Universe: How Much Isocurvature Is Allowed?” Phys.Rev.Lett. 93 (8): 081301.
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Publisher copy:: 10.1103/PhysRevLett.93.081301

Authors

+ Bucher, M More by this author

Role:: Author

+ Dunkley, J More by this author

Role:: Author

+ Ferreira, P More by this author

Role:: Author

+ Moodley, K More by this author

Role:: Author

+ Skordis, C More by this author

Role:: Author

Journal:: Phys.Rev.Lett. More from this journal
Volume:: 93
Issue:: 8
Pages:: 081301
Publication date:: 2004-01-21
DOI:: 10.1103/PhysRevLett.93.081301
EISSN:: 1079-7114
ISSN:: 0031-9007

Keywords:: astro-ph

gr-qc

hep-th
Pubs id:: pubs:13138
UUID:: uuid:cccc1743-cfc4-48c3-987d-3ad509b3a2f2
Local pid:: pubs:13138
Source identifiers:: 13138
Deposit date:: 2012-12-19
ARK identifier:: ark:/29072/ora_cccc1743cfc448c3987d3ad509b3a2f2

Terms of use

Copyright date:: 2004
Notes:: 4 pages, 4 figures. Submitted to PRL

Licence:: Terms and Conditions of Use for Oxford University Research Archive

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