Topology-Induced Critical Current Enhancement in Josephson Networks

TL;DR

This paper studies how the topology of Josephson junction networks influences their critical current, revealing unique behaviors and similarities with bosonic arrays, which could impact superconducting device design.

Contribution

It introduces inhomogeneous

Findings

Topology affects Josephson current behavior.

Networks show surprising superconducting phenomena.

Similarities with bosonic junction arrays observed.

Abstract

We investigate the properties of Josephson junction networks with inhomogeneous architecture. The networks are shaped as "quare comb" planar lattices on which Josephson junctions link superconducting islands arranged in the plane to generate the pertinent topology. Compared to the behavior of reference linear arrays, the temperature dependencies of the Josephson currents of the branches of the network exhibit relevant differences. The observed phenomena evidence new and surprising behavior of superconducting Josephson arrays as well as remarkable similarities with bosonic junction arrays.