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Clustered Superfluids in the One Dimensional Bose-Hubbard model with extended correlated hopping

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 نشر من قبل Julia Stasi\\'nska
 تاريخ النشر 2020
  مجال البحث فيزياء
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Bosonic lattice systems with non-trivial interactions represent an intriguing platform to study exotic phases of matter. Here, we study the effects of extended correlated hopping processes in a system of bosons trapped in a lattice geometry. The interplay between single particle tunneling terms, correlated hopping processes and on-site repulsion is studied by means of a combination of exact diagonalization, strong coupling expansion and cluster mean field theory. We identify a rich ground state phase diagram where, apart the usual Mott and superfluid states, superfluid phases with interesting clustering properties occur.



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