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Phys. Rev. D 67, 063508 (2003) [5 pages]

Imprints of short distance physics on inflationary cosmology

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Richard Easther1, Brian R. Greene1,2, William H. Kinney1, and Gary Shiu3
1Institute for Strings, Cosmology and Astroparticle Physics, Columbia University, New York, New York 10027
2Department of Mathematics, Columbia University, New York, New York 10027
3Department of Physics and Astronomy, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6396

Received 15 April 2002; published 26 March 2003

We analyze the impact of certain modifications to short distance physics on the inflationary perturbation spectrum. For the specific case of power-law inflation, we find distinctive—and possibly observable—effects on the spectrum of density perturbations.

© 2003 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevD.67.063508
DOI:
10.1103/PhysRevD.67.063508
PACS:
98.80.Cq
 
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