Strings in Plane Wave Backgrounds Revisited
arXiv:hep-th/9311187 · doi:10.1103/PhysRevD.50.5232
Abstract
String theory in an exact plane wave background is explored. A new example of singularity in the sense of string theory for nonsingular spacetime metric is presented. The 4-tachyon scattering amplitude is constructed. The spectrum of states found from the poles in the factorization turns out to be equivalent to that of the theory in flat space-time. The massless vertex operator is obtained from the residue of the first order pole.
15 pages, GTCRG-8, RevTex
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