De Sitter Cosmic Strings and Supersymmetry
arXiv:1104.3241 · doi:10.1007/s10714-012-1339-2
Abstract
We study massive spinor fields in the geometry of a straight cosmic string in a de Sitter background. We find a hidden N=2 supersymmetry in the fermionic solutions of the equations of motion. We connect the zero mode solutions to the heat-kernel regularized Witten index of the supersymmetric algebra.
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