Conformality loss and quantum criticality in topological Higgs electrodynamics in 2+1 dimensions

  title={Conformality loss and quantum criticality in topological Higgs electrodynamics in 
  author={Flavio S. Nogueira and Jeroen van den Brink and Asle Sudb{\o}},
  journal={Physical Review D},
The electromagnetic response of topological insulators and superconductors is governed by a modified set of Maxwell equations that derive from a topological Chern-Simons (CS) term in the effective Lagrangian with coupling constant $\kappa$. Here we consider a topological superconductor or, equivalently, an Abelian Higgs model in $2+1$ dimensions with a global $O(2N)$ symmetry in the presence of a CS term, but without a Maxwell term. At large $\kappa$, the gauge field decouples from the complex… 

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