Disentanglement-induced superconductivity

Abstract

The current study is motivated by a difficulty to reconcile between particle number conservation and superconductivity. An alternative modeling, which is based on the hypothesis that disentanglement spontaneously ocuurs in quantum systems, is explored. The Fermi-Hubbard mode is employed to demonstrate a disentanglement-induced quantum phase transition into a state having a finite superconducting order parameter. Moreover, the effect of disentanglement on Josephson junction's current phase relation is explored.