Theory of bosons in two-leg ladders with large magnetic fields

@article{Wei2014TheoryOB,
  title={Theory of bosons in two-leg ladders with large magnetic fields},
  author={Ran Wei and Erich Mueller},
  journal={Physical Review A},
  year={2014},
  volume={89},
  pages={063617}
}
We calculate the ground state of a Bose gas trapped on a two-leg ladder where Raman-induced hopping mimics the effect of a large magnetic field. In the mean-field limit, where there are large numbers of particles per site, this maps onto a uniformly frustrated two-leg ladder classical spin model. The net particle current always vanishes in the ground state, but generically there is a finite "chiral current", corresponding to equal and opposite flow on the two legs. We vary the strength of the… Expand

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