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Cited by 724

The DOI matches its Crossref record; 103 of the 103 references it cites were found in a registry or an index.

Monodromy in the CMB: Gravity waves and string inflation

Silverstein, Eva, Westphal, Alexander·2008·Physical Review D
DOI 10.1103/physrevd.78.106003
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Abstract

We present a simple mechanism for obtaining large-field inflation, and hence a gravitational wave signature, from string theory compactified on twisted tori. For nil manifolds, we obtain a leading inflationary potential proportional to ${\ensuremath{\phi}}^{2/3}$ in terms of the canonically normalized field $\ensuremath{\phi}$, yielding predictions for the tilt of the power spectrum and the tensor-to-scalar ratio, ${n}_{s}\ensuremath{\approx}0.98$ and $r\ensuremath{\approx}0.04$ with 60 e-foldings of inflation; we note also the possibility of a variant with a candidate inflaton potential proportional to ${\ensuremath{\phi}}^{2/5}$. The basic mechanism involved in extending the field range---monodromy in $D$-branes as they move in circles on the manifold---arises in a more general class of compactifications, though our methods for controlling the corrections to the slow-roll parameters require additional symmetries.

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Metadata

Authors
Silverstein, E., & Westphal, A.
Venue
Physical Review D
Publisher
American Physical Society (APS)
Published
2008-11-06
Volume
78
Issue
10
ISSN
  • 1550-7998
  • 1550-2368
DOI
10.1103/physrevd.78.106003
Cited by
724
References
103
Language
en
Licence
link.aps.org/licenses/aps-default-license (vor)

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