Columbia University

researchers with a paper here

Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.

collaborating institutions

Showing 2005 · hep-thShow all

9 papers · 2 filters

hep-th2005★ 11 cited

New bounce solutions and vacuum tunneling in de Sitter spacetime

Erick J. Weinberg

I describe a class of oscillating bounce solutions to the Euclidean field equations for gravity coupled to a scalar field theory with multiple vacua. I discuss their implications f…

hep-th2005★ 5 cited

A note on the Coulomb branch of susy Yang-Mills

Daniel Kabat, Gilad Lifschytz

We compute the force between oppositely charged W bosons in the large N limit of Yang-Mills with 16 supercharges broken to SU(N) x U(1) by a finite Higgs vev. We clarify some issue…

hep-th2005★ 40 cited

Universal Correction to the Inflationary Vacuum

Brian Greene, Maulik Parikh, Jan Pieter van der Schaar

The Bunch-Davies state appears precisely thermal to a free-falling observer in de Sitter space. However, precise thermality is unphysical because it violates energy conservation. I…

hep-th2005★ 12 cited

An Effect of $α^{'}$ Corrections on Racetrack Inflation

Brian R. Greene, Amanda Weltman

We study the effects of $α^{'}$ corrections to the Kähler potential on volume stabilisation and racetrack inflation. In a region where classical supergravity analysis is justified, s…

hep-th2005★ 87 cited

The Volume of Black Holes

Maulik K. Parikh

We propose a definition of volume for stationary spacetimes. The proposed volume is independent of the choice of stationary time-slicing, and applies even though the Killing vector…

hep-th2005★ 320 cited

Local bulk operators in AdS/CFT: a boundary view of horizons and locality

Alex Hamilton, Daniel Kabat, Gilad Lifschytz +1

We develop the representation of local bulk fields in AdS by non-local operators on the boundary, working in the semiclassical limit and using AdS_2 as our main example. In global…

hep-th2005★ 129 cited

Two-loop superstrings and S-duality

Eric D'Hoker, Michael Gutperle, D. H. Phong

The two-loop contribution to the Type IIB low energy effective action term $D^{4} R^{4}$ , predicted by SL(2,Z) duality, is compared with that of the two-loop 4-point function derived r…

hep-th2005★ 187 cited

Two-Loop Superstrings VI: Non-Renormalization Theorems and the 4-Point Function

Eric D'Hoker, D. H. Phong

The N-point amplitudes for the Type II and Heterotic superstrings at two-loop order and for $N \leq 4$ massless NS bosons are evaluated explicitly from first principles, using the…

hep-th2005★ 84 cited

Two-Loop Superstrings V: Gauge Slice Independence of the N-Point Function