@article{ISI:000252862200086,
 abstract = {We generalize the mean-field theory for the spinless Bose-Hubbard model
to account for the different types of superfluid phases that can arise
in the spin-1 case. In particular, our mean-field theory can distinguish
polar and ferromagnetic superfluids, Mott insulator, that arise at
integer fillings at zero temperature, and normal Bose liquids into which
the Mott insulators evolve at finite temperatures. We find, in contrast
to the spinless case, that several of the superfluid-Mott insulator
transitions are of first order at finite temperatures. Our systematic
study yields rich phase diagrams that include first-order and
second-order transitions and a variety of tricritical points. We discuss
the possibility of realizing such phase diagrams in experimental
systems.},
 article-number = {014503},
 author = {Pai, Ramesh V. and Sheshadri, K. and Pandit, Rahul},
 doi = {10.1103/PhysRevB.77.014503},
 eissn = {2469-9969},
 issn = {2469-9950},
 journal = {PHYSICAL REVIEW B},
 month = {JAN},
 number = {1},
 times-cited = {60},
 title = {Phases and transitions in the spin-1 Bose-Hubbard model: Systematics of
a mean-field theory},
 unique-id = {ISI:000252862200086},
 volume = {77},
 year = {2008}
}