223 citations · 923 across the 26 of their papers we have counts for
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cond-mat.soft2004★ 19 cited
Strong-coupling expansions for the topologically inhomogeneous Bose-Hubbard model
P. Buonsante, V. Penna, A. Vezzani
We consider a Bose-Hubbard model with an arbitrary hopping term and provide the boundary of the insulating phase thereof in terms of third-order strong coupling perturbative expans…
cond-mat.soft2004★ 14 cited
Topology-induced confined superfluidity in inhomogeneous arrays
P. Buonsante, R. Burioni, D. Cassi +2
We report the first study of the zero-temperature phase diagram of the Bose-Hubbard model on topologically inhomogeneous arrays. We show that the usual Mott-insulator and superflui…
cond-mat.soft2004★ 87 cited
Phase Diagram for Ultracold Bosons in Optical Lattices and Superlattices
Pierfrancesco Buonsante, Alessandro Vezzani
We present an analytic description of the finite-temperature phase diagram of the Bose-Hubbard model, successfully describing the physics of cold bosonic atoms trapped in optical l…