@article{ISI:000302602500002,
 abstract = {Motivated by experiments on Josephson junction arrays, and cold atoms in
an optical lattice in a synthetic magnetic field, we study the ``fully
frustrated″ Bose-Hubbard model with half a magnetic flux quantum per
plaquette. We obtain the phase diagram of this model on a two-leg ladder
at integer filling via the density matrix renormalization group
approach, complemented by Monte Carlo simulations on an effective
classical XY model. The ground state at intermediate correlations is
consistently shown to be a chiral Mott insulator (CMI) with a gap to all
excitations and staggered loop currents which spontaneously break
time-reversal symmetry. We characterize the CMI state as a vortex
supersolid or an indirect exciton condensate, and discuss various
experimental implications.},
 article-number = {041602},
 author = {Dhar, Arya and Maji, Maheswar and Mishra, Tapan and Pai, R. V. and
Mukerjee, Subroto and Paramekanti, Arun},
 doi = {10.1103/PhysRevA.85.041602},
 eissn = {1094-1622},
 issn = {1050-2947},
 journal = {PHYSICAL REVIEW A},
 month = {APR 11},
 number = {4},
 orcid-numbers = {Paramekanti, Arun/0000-0001-6113-3147},
 times-cited = {78},
 title = {Bose-Hubbard model in a strong effective magnetic field: Emergence of a
chiral Mott insulator ground state},
 unique-id = {ISI:000302602500002},
 volume = {85},
 year = {2012}
}