87 citations · 642 across the 37 of their papers we have counts for
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Ground-state entanglement of spin-1 bosons undergoing superexchange interactions in optical superlattices
Artur Barasiński, Wiesław Leoński, Tomasz Sowiński
We discuss a model with ultra-cold atoms confined in optical superlattices. In particular, we study the ground-state properties of two spin-1 bosons trapped in a double-well potent…
Pairing in a system of a few attractive fermions in a harmonic trap
Tomasz Sowiński, Mariusz Gajda, Kazimierz Rzążewski
We study a strongly attractive system of a few spin-1/2 fermions confined in a one-dimensional harmonic trap, interacting via two-body contact potential. Performing exact diagonali…
Mean-field approaches to the Bose-Hubbard model with three-body local interaction
Tomasz Sowiński, Ravindra W. Chhajlany
The zero temperature properties of the generalized Bose-Hubbard model including three-body interactions are studied on a mean-field level. We obtain analytical results using the so…