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arXiv · 1011.0586

Topological field theory and thermal responses of interacting topological superconductors

Zhong Wang·Xiao-Liang Qi·Shou-Cheng Zhang
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Abstract

We investigate the three-dimensional, time-reversal invariant topological superconductors with generic interaction by their response to external fields. The first description is a gravitational topological field theory, which gives a $Z_2$ classification of topological superconductors, and predicts a half-quantized thermal Hall effect on the surface. The second description introduces an s-wave proximity pairing field on the surface, and the associated topological defects give an integer $Z$ classification of the topological superconductors.

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Zhong Wang, Xiao-Liang Qi, Shou-Cheng Zhang. 2011-07-28. Topological field theory and thermal responses of interacting topological superconductors. https://doi.org/10.1103/physrevb.84.014527

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