Superconductors with Topological Order and their Realization in Josephson Junction Arrays

TL;DR

This paper introduces a novel superconductivity mechanism based on topologically ordered ground states, applicable in any dimension, preserving P and T invariance, and contrasting with traditional Landau symmetry-breaking theories.

Contribution

It proposes a new topologically ordered superconductivity mechanism, expanding the theoretical framework beyond conventional Landau-Ginzburg models.

Findings

Describes a topological superconductivity mechanism

Works in any dimension, unlike anyon superconductivity

Preserves P and T invariance

Abstract

We will describe a new superconductivity mechanism, proposed by the authors in [1], which is based on a topologically ordered ground state rather than on the usual Landau mechanism of spontaneous symmetry breaking. Contrary to anyon superconductivity it works in any dimension and it preserves P-and T-invariance. In particular we will discuss the low-energy effective field theory, what would be the Landau-Ginzburg formulation for conventional superconductors.