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arXiv · 2010.14459

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

Julia Stasińska·Omjyoti Dutta·Luca Barbiero·Maciej Lewenstein·Ravindra W. Chhajlany
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Abstract

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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Julia Stasińska, Omjyoti Dutta, Luca Barbiero, Maciej Lewenstein, Ravindra W. Chhajlany. 2020-10-27. Clustered Superfluids in the One Dimensional Bose-Hubbard model with extended correlated hopping. https://doi.org/10.1103/physrevb.103.134513

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