Emergent Chern-Simons Interactions in 3+1 Dimensions
arXiv:2309.10025 · doi:10.1103/PhysRevB.109.064514
Abstract
Parity violating superconductors can support a low-dimension local interaction that becomes, upon condensation, a purely spatial Chern-Simons term. Solutions to the resulting generalized London equations can be obtained from solutions of the ordinary London equations with a complex penetration depth, and suggest several remarkable physical phenomena. The problem of flux exclusion by a sphere brings in an anapole moment, the problem of current-carrying wires brings in an azimuthal magnetic field, and the problem of vortices brings in currents along the vortices. We demonstrate that interactions of this kind, together with a conceptually related dimensionally reduced Chern-Simons interaction, can arise from physically plausible microscopic interactions.
arXiv comment11+5 pages, 4+1 figures. Published in Phys. Rev. B
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- Chiral vortex-line liquid of three-dimensional interacting Bose systems with moat dispersion
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- Breakdown of the Meissner effect at the zero exceptional point in non-Hermitian two-band BCS model