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Topological Gauge Theory of Josephson Junction Arrays: The Discovery of Superinsulation
Version 1
: Received: 25 September 2023 / Approved: 26 September 2023 / Online: 26 September 2023 (08:24:44 CEST)
A peer-reviewed article of this Preprint also exists.
Diamantini, M.C. Topological Gauge Theory of Josephson Junction Arrays: The Discovery of Superinsulation. Condens. Matter 2023, 8, 97. Diamantini, M.C. Topological Gauge Theory of Josephson Junction Arrays: The Discovery of Superinsulation. Condens. Matter 2023, 8, 97.
Abstract
We review the topological gauge theory description of Josephson
junction arrays (JJA), fabricated systems which exhibit the superconductor to insulator transition (SIT). This description revealed the topological nature of the phases appearing at the SIT and lead to the discovery of a new state of matter, the superinsulator, characterized by an infinite resistance, even at finite temperature, due to linear confinement of electric charges. This discovery is particularly relevant for the physics of superconducting films with emergent granularity, which are modeled by JJA, and share the same phase diagram.
Keywords
Josephson junction arrays; topological field theory; topological phases of matter; superinsulators
Subject
Physical Sciences, Condensed Matter Physics
Copyright: This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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