Phys. Rev. A 93, 023828 (2016) - Superfluid-Mott transitions and vortices in the Jaynes-Cummings-Hubbard lattices with time-reversal-symmetry breaking

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

A. L. C. Hayward and A. M. Martin

Phys. Rev. A 93, 023828 – Published 22 February 2016

Abstract

We investigate the ground-state behavior of Jaynes-Cummings-Hubbard lattices in the presence of a synthetic magnetic field, via a Gutzwiller ansatz. Specifically, we study the superfluid-Mott 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 triangular vortex lattices inside the superfluid regime.

Received 20 October 2015
Revised 8 December 2015

DOI:https://doi.org/10.1103/PhysRevA.93.023828

©2016 American Physical Society

Physics Subject Headings (PhySH)

Cavity quantum electrodynamics Mott-superfluid transition Synthetic gauge fields

Vortices in superfluids

Atomic, Molecular & Optical

Authors & Affiliations

A. L. C. Hayward and A. M. Martin

School of Physics, University of Melbourne, Victoria 3010, Australia

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Issue

Vol. 93, Iss. 2 — February 2016

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