paper

BPS States of Exceptional Non-Critical Strings

arXiv:hep-th/9607139 · doi:10.1016/S0920-5632(97)00422-2

Abstract

We study the BPS states of non-critical strings which arise for zero size instantons of exceptional groups. This is accomplished by using F-theory and M-theory duals and by employing mirror symmetry to compute the degeneracy of membranes wrapped around 2-cycles of the Calabi-Yau threefold. We find evidence for a number of novel physical phenomena, including having infinitely many light states with the first lightest state including a nearly massless gravitino.

29 pages, 1 figure, references added, to appear in the proceedings of the conference "Advanced Quantum Field Theory'' (in memory of Claude Itzykson)

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