%0 Journal Article %1 Qi2012Axion %A Qi, Xiao-Liang %A Witten, Edward %A Zhang, Shou-Cheng %D 2012 %K ads-cmt, arxiv %T Axion topological field theory of topological superconductors %U http://arxiv.org/abs/1206.1407 %X Topological superconductors are gapped superconductors with gapless and topologically robust quasiparticles propagating on the boundary. In this paper, we present a topological field theory description of three-dimensional time-reversal invariant topological superconductors. In our theory the topological superconductor is characterized by a topological coupling between the electromagnetic field and the superconducting phase fluctuation, which has the same form as the coupling of äxions" with an Abelian gauge field. As a physical consequence of our theory, we predict the level crossing induced by the crossing of special "chiral" vortex lines, which can be realized by considering s-wave superconductors in proximity with the topological superconductor. Our theory can also be generalized to the coupling with a gravitational field.

@article{Qi2012Axion, abstract = {{Topological superconductors are gapped superconductors with gapless and topologically robust quasiparticles propagating on the boundary. In this paper, we present a topological field theory description of three-dimensional time-reversal invariant topological superconductors. In our theory the topological superconductor is characterized by a topological coupling between the electromagnetic field and the superconducting phase fluctuation, which has the same form as the coupling of "axions" with an Abelian gauge field. As a physical consequence of our theory, we predict the level crossing induced by the crossing of special "chiral" vortex lines, which can be realized by considering s-wave superconductors in proximity with the topological superconductor. Our theory can also be generalized to the coupling with a gravitational field.}}, added-at = {2019-02-26T10:37:35.000+0100}, archiveprefix = {arXiv}, author = {Qi, Xiao-Liang and Witten, Edward and Zhang, Shou-Cheng}, biburl = {https://www.bibsonomy.org/bibtex/295fd122231337cf7e6c540dae7979274/acastro}, citeulike-article-id = {10771738}, citeulike-linkout-0 = {http://arxiv.org/abs/1206.1407}, citeulike-linkout-1 = {http://arxiv.org/pdf/1206.1407}, day = 8, eprint = {1206.1407}, interhash = {c7571584eeb0d995e1e3f8cbcf664780}, intrahash = {95fd122231337cf7e6c540dae7979274}, keywords = {ads-cmt, arxiv}, month = jun, posted-at = {2012-06-08 17:11:58}, priority = {2}, timestamp = {2019-02-26T10:37:35.000+0100}, title = {{Axion topological field theory of topological superconductors}}, url = {http://arxiv.org/abs/1206.1407}, year = 2012 }