Superfluid-Mott transitions and vortices in the Jaynes-Cummings-Hubbard lattices with time reversal symmetry breaking

TL;DR

This paper explores how synthetic magnetic fields affect the phase transitions and vortex formations in Jaynes-Cummings-Hubbard lattices, revealing suppression of superfluidity and vortex lattice regimes.

Contribution

It introduces a Gutzwiller ansatz approach to analyze the impact of time reversal symmetry breaking on phase transitions and vortex structures in these lattices.

Findings

Superfluid fraction is suppressed by magnetic frustration.

Vortex lattice regimes are predicted in the superfluid phase.

Magnetic field influences the Mott-Superfluid transition.

Abstract

We investigate the groundstate behaviour of Jaynes-Cummings-Hubbard lattices in the presence of a synthetic magnetic field, via a Gutzwiller ansatz. Specifically, we study the Mott-Superfluid transition, and the formation of vortex lattices in the superfluid regime. We find a suppression of the superfluid fraction due to the frustration induced by the incommensurate magnetic and spacial lattice lengths. We also predict the formation of regime.