2k citations · 13.2k across the 79 of their papers we have counts for
7 papers · 1 filter
Folding Branes
Omid Saremi, Lev Kofman, Amanda W. Peet
We study classical dynamics of a probe Dp-brane moving in a background sourced by a stack of Dp-branes. In this context the physics is similar to that of the effective action for o…
Beauty is Attractive: Moduli Trapping at Enhanced Symmetry Points
Lev Kofman, Andrei Linde, Xiao Liu +3
We study quantum effects on moduli dynamics arising from the production of particles which are light at special points in moduli space. The resulting forces trap the moduli at thes…
BRANECODE: A Program for Simulations of Braneworld Dynamics
Johannes Martin, Gary N. Felder, Andrei V. Frolov +2
We describe an algorithm and a C++ implementation that we have written and made available for calculating the fully nonlinear evolution of 5D braneworld models with scalar fields.…
Gravitational Instability of de Sitter Compactifications
Carlo Contaldi, Lev Kofman, Marco Peloso
We consider warped compactifications in (4+d)-dimensional theories, with four dimensional de Sitter dS_4 vacua (with Hubble parameter H) and with a compact internal space. After in…
Modulated fluctuations from hybrid inflation
Francis Bernardeau, Lev Kofman, Jean-Philippe Uzan
Inflation universally produces classical almost scale free Gaussian inhomogeneities of any light scalars. Assuming the coupling constants at the time of inflation depend on some li…
Inhomogeneous Fragmentation of the Rolling Tachyon
Gary N. Felder, Lev Kofman
Dirac-Born-Infeld type effective actions reproduce many aspects of string theory classical tachyon dynamics of unstable Dp-branes. The inhomogeneous tachyon field rolling from the…