Runaway dilatonic domain walls
arXiv:0911.4342 · doi:10.1103/PhysRevD.81.043527
Abstract
We explore the stability of domain wall and bubble solutions in theories with compact extra dimensions. The energy density stored inside of the wall can destabilize the volume modulus of a compactification, leading to solutions containing either a timelike singularity or a region where space decompactifies, depending on the metric ansatz. We determine the structure of such solutions both analytically and using numerical simulations, and analyze how they arise in compactifications of Einstein--Maxwell theory and Type IIB string theory. The existence of instabilities has important implications for the formation of networks of topological defects and the population of vacua during eternal inflation.
29 pages with 19 figures. Replaced to match published version
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Cited by in corpus (21)
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- Topics in vacuum decay (Ph.D Thesis)