Superconducting phase transition in a two-dimensional Chern-Simons theory
J. Kapusta, M. E. Carrington, B. Bayman, D. Seibert, C. S. Song
DOI 10.1103/PhysRevB.44.7519 · Physical Review B
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Abstract
We consider a two-dimensional Chern-Simons gauge theory where the gauge field couples to an internal degree of freedom of the fermion. For a fixed gauge coupling g there exists a finite window of Chern-Simons magnetic moment coupling g’ for which a nonzero Chern-Simons magnetic field is generated at T=0. The system then is superconducting without Cooper pairing. There is a second-order thermodynamic phase transition at Tc>0 where the Chern-Simons magnetic field goes to zero and superconductivity terminates.
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