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arXiv · 1703.04297

Extended Bose Hubbard model for two leg ladder systems in artificial magnetic fields

Rashi Sachdeva·Manpreet Singh·Thomas Busch
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Abstract

We investigate the ground state properties of ultracold atoms with long range interactions trapped in a two leg ladder configuration in the presence of an artificial magnetic field. Using a Gross-Pitaevskii approach and a mean field Gutzwiller variational method, we explore both the weakly interacting and strongly interacting regime, respectively. We calculate the boundaries between the density-wave/supersolid and the Mott-insulator/superfluid phases as a function of magnetic flux and uncover regions of supersolidity. The mean-field results are confirmed by numerical simulations using a cluster mean field approach.

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Rashi Sachdeva, Manpreet Singh, Thomas Busch. 2017-03-13. Extended Bose Hubbard model for two leg ladder systems in artificial magnetic fields. https://doi.org/10.1103/physreva.95.063601

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