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- Title
Can free strings propagate across plane wave singularities?
- Authors
Craps, Ben; Roo, Frederik De; Evnin, Oleg
- Abstract
We study free string propagation in families of plane wave geometries developing strong scale-invariant singularities in certain limits. We relate the singular limit of the evolution for all excited string modes to that of the center-of-mass motion (the latter existing for discrete values of the overall plane wave profile normalization). Requiring that the entire excitation energy of the string should be finite turns out to be quite restrictive and essentially excludes consistent propagation across the singularity, unless dimensionful scales are introduced at the singular locus (in an otherwise scale-invariant space-time).
- Publication
Journal of High Energy Physics, 2009, Vol 2009, Issue 3, p105
- ISSN
1126-6708
- Publication type
Article
- DOI
10.1088/1126-6708/2009/03/105