Showing 2007 · hep-thShow all

11 papers · 2 filters

hep-th2007★ 38 cited

Two-Loop Superstrings VII, Cohomology of Chiral Amplitudes

Eric D'Hoker, D. H. Phong

The relation between superholomorphicity and holomorphicity of chiral superstring N-point amplitudes for NS bosons on a genus 2 Riemann surface is shown to be encoded in a hybrid c…

hep-th2007★ 66 cited

Inflation from Wrapped Branes

Melanie Becker, Louis Leblond, Sarah Shandera

We show that the use of higher dimensional wrapped branes can significantly extend the inflaton field range compared to brane inflation models which use D3-branes. We construct a s…

hep-th2007★ 86 cited

Deep inelastic scattering off a N=4 SYM plasma at strong coupling

Y. Hatta, E. Iancu, A. H. Mueller

By using the AdS/CFT correspondence we study the deep inelastic scattering of an R-current off a N=4 supersymmetric Yang-Mills (SYM) plasma at finite temperature and strong couplin…

hep-th2007★ 109 cited

Deep inelastic scattering at strong coupling from gauge/string duality : the saturation line

Y. Hatta, E. Iancu, A. H. Mueller

For gauge theories which admit a dual string description, we analyze deep inelastic scattering at strong 't Hooft coupling and high energy, in the vicinity of the unitarity limit.…

hep-th2007★ 45 cited

Microcausality in Curved Space-Time

Sergei Dubovsky, Alberto Nicolis, Enrico Trincherini +1

It is well known that in Lorentz invariant quantum field theories in flat space the commutator of space-like separated local operators vanishes (microcausality). We provide two dif…

hep-th2007★ 37 cited

Rapid Tunneling and Percolation in the Landscape

Sash Sarangi, Gary Shiu, Benjamin Shlaer

Motivated by the possibility of a string landscape, we reexamine tunneling of a scalar field across single/multiple barriers. Recent investigations have suggested modifications to…

hep-th2007★ 81 cited

Dark Energy and Stabilization of Extra Dimensions

Brian R. Greene, Janna Levin

We discuss the role Casimir energies may play in addressing issues of moduli stabilization and dark energy. In particular, we examine a (non-supersymmetric) brane world scenario wi…

hep-th2007★ 37 cited

A Wrinkle in Coleman - De Luccia

Adam R. Brown, Saswat Sarangi, Benjamin Shlaer +1

Stringy effects on vacuum transitions are shown to include surprisingly large decay rates through very high potential barriers. This simple, yet counter-intuitive result will drast…

hep-th2007★ 115 cited

Thermal derivation of the Coleman-De Luccia tunneling prescription

Adam R. Brown, Erick J. Weinberg

We derive the rate for transitions between de Sitter vacua by treating the field theory on the static patch as a thermal system. This reproduces the Coleman-De Luccia formalism for…

hep-th2007★ 101 cited

Comparing Brane Inflation to WMAP

Rachel Bean, Sarah E. Shandera, S. H. Henry Tye +1

We compare the simplest realistic brane inflationary model to recent cosmological data, including WMAP 3-year cosmic microwave background (CMB) results, Sloan Digital Sky Survey lu…

hep-th2007★ 29 cited

Families of Quintic Calabi-Yau 3-Folds with Discrete Symmetries

Charles Doran, Brian Greene, Simon Judes

At special loci in their moduli spaces, Calabi-Yau manifolds are endowed with discrete symmetries. Over the years, such spaces have been intensely studied and have found a variety…