Gravity waves in classical string theory

Details Gravity waves in classical string theory Gravity waves in classical string theory

Apr 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992nuphb.373..529s&link_type=abstract

Nuclear Physics B, Volume 373, Issue 2, p. 529-556.

Physics

Nuclear Physics

2

Scientific paper

Gravity waves that serve as conformally invariant bavkgrounds for the string sigma model can create space-time singularities when they collide. We describe some of the properties and pathologies of these waves, and compute the O(α') perturbation to the metric for the space-time with two colliding plane waves. The perturbative correction to the dilaton field indicates that the α' expansion becomes strongly coupled when the space-time curvature is large. The null convergence condition required for proving the singularity theorem for these space-times can be violated for certain choices of amplitude and polarization of the colliding waves.

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