Aguirre, Anthony and Johnson, Matthew C. and Larfors, Magdalena (2010) Runaway dilatonic domain walls. Physical Review D, 81 (4). Art. No. 043527. ISSN 0556-2821 http://resolver.caltech.edu/CaltechAUTHORS:20100413-111150524
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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.
|Additional Information:||© 2010 The American Physical Society. Received 10 December 2009; published 16 February 2010. The authors wish to thank J. Blanco-Pillado, B. Freivogel, J. Garriga, and U. Yajnik for helpful conversations. A. A.’s research is funded by NSF Grant No. PHY- 0757912, and a Foundational Questions in Physics and Cosmology grant from the Templeton Foundation. M. J. is supported by the Gordon and Betty Moore Foundation, and thanks the Perimeter Institute for their hospitality while portions of this work were completed. The research of M. L. is supported by the Deutsche Forschungsgemeinschaft.|
|Classification Code:||PACS: 98.80.Cq.|
|Usage Policy:||No commercial reproduction, distribution, display or performance rights in this work are provided.|
|Deposited By:||Tony Diaz|
|Deposited On:||30 Apr 2010 05:36|
|Last Modified:||08 Mar 2013 21:38|
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