Johnson, Matthew C. and Larfors, Magdalena (2008) Obstacle to populating the string theory landscape. Physical Review D, 78 (12). Art. No. 123513. ISSN 0556-2821 http://resolver.caltech.edu/CaltechAUTHORS:JOHprd08b
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Abstract
We construct domain walls and instantons in a class of models with coupled scalar fields, determining, in agreement with previous studies, that many such solutions contain naked timelike singularities. Vacuum bubble solutions of this type do not contain a region of true vacuum, obstructing the ability of eternal inflation to populate other vacua. We determine a criterion that potentials must satisfy to avoid the existence of such singularities and show that many domain wall solutions in type IIB string theory are singular.
| Item Type: | Article |
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| Additional Information: | © 2008 The American Physical Society. Received 26 September 2008; published 5 December 2008. We thank T. Banks, S. Carroll, U. Danielsson, F. Denef, M. Dine, J. Preskill, A. Vilenkin, and K. Vyas for discussions and comments. M.J. is supported by the Gordon and Betty Moore Foundation. M. L. was supported in part by the STINT CTP-Uppsala exchange and thanks the CTP at MIT for hospitality. |
| Record Number: | CaltechAUTHORS:JOHprd08b |
| Persistent URL: | http://resolver.caltech.edu/CaltechAUTHORS:JOHprd08b |
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| Metadata Review: | All Records > Caltech Library Services |
| ID Code: | 12495 |
| Collection: | CaltechAUTHORS |
| Deposited By: | Archive Administrator |
| Deposited On: | 10 Dec 2008 22:49 |
| Last Modified: | 08 Sep 2009 16:32 |
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