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The past two decades have seen transformative advances in cosmology and string theory.
Observations of the cosmic microwave background have revealed strong evidence for …

The current flow of high accuracy astrophysical data, among which are the Cosmic
Microwave Background (CMB) measurements by the Planck satellite, offers an …

We present a detailed analysis of an explicit model of warped D-brane inflation,
incorporating the effects of moduli stabilization. We consider the potential for D3-brane …

A bstract We analyze the de Sitter construction of [1] using ten-dimensional supergravity,
finding exact agreement with the four-dimensional effective theory. Starting from the …

4 Inflation in String Theory Page 1 4 Inflation in String Theory Renata Kallosh Department of
Physics, Stanford University, Stanford, CA 94305 kallosh@stanford.edu Abstract. In this …

We investigate whether explicit models of warped D-brane inflation are possible in string
compactifications. To this end, we study the potential for D3-brane motion in a warped …

We propose to combine the quantum corrected O'Raifeartaigh model, which has a dS
minimum near the origin of the moduli space, with the KKLT model with an AdS minimum …

The primordial non-Gaussian parameter f NL has been shown to be scale-dependent in
several models of inflation with a variable speed of sound, such as Dirac-Born-Infeld (DBI) …

We construct approximate inflationary solutions rolling away from the unstable maximum of
p-adic string theory, a nonlocal theory with derivatives of all orders. Novel features include …