De Sitter Cosmic Strings and Supersymmetry [PDF]
V. K. OikonomouWe 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.View original: http://arxiv.org/abs/1104.3241
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