57 citations · 234 across the 7 of their papers we have counts for
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cond-mat.mes-hall2005★ 7 cited
An algebraic approach to the study of weakly excited states for a condensate in a ring geometry
P. Buonsante, R. Franco, V. Penna
We determine the low-energy spectrum and the eigenstates for a two-bosonic mode nonlinear model by applying the Inönü-Wigner contraction method to the Hamiltonian algebra. This mod…
cond-mat.stat-mech2005★ 26 cited
Fractional-filling Mott domains in two dimensional optical superlattices
Pierfrancesco Buonsante, Vittorio Penna, Alessandro Vezzani
Ultracold bosons in optical superlattices are expected to exhibit fractional-filling insulating phases for sufficiently large repulsive interactions. On strictly 1D systems, the ex…