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

Autor:	Stasińska, Julia, Dutta, Omjyoti, Barbiero, Luca, Lewenstein, Maciej, Chhajlany, Ravindra W.
Rok vydání:	2020
Předmět:	Condensed Matter - Quantum Gases Quantum Physics
Zdroj:	Phys. Rev. B 103, 134513 (2021)
Druh dokumentu:	Working Paper
DOI:	10.1103/PhysRevB.103.134513
Popis:	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. Comment: 9 pages, 6 figures, significantly revised arXiv:1912.13359
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/2010.14459 Zobrazit plný text záznamu View this record from Arxiv