2021
DOI: 10.48550/arxiv.2102.12193
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Origin of Topological Order in a Cooper Pair Insulator

Siddhartha Patra,
Siddhartha Lal

Abstract: While a topologically ordered counterpart of the s-wave superconductor has been proposed in the literature on phenomenological grounds, its microscopic origin remains unknown. In meeting this goal, we employ the recently developed unitary renormalisation group (URG) method on a generalised model of electrons in two spatial dimensions with attractive interactions. We show that the effective Hamiltonian obtained at the stable low-energy fixed point of the RG flow corresponds to a gapped, insulating state of quan… Show more

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