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- W2063558767 abstract "We study the Mott transition occurring for bosonic Hubbard models in one, two, and three spatial dimensions by means of a variational wave function benchmarked by Green's function Monte Carlo calculations. We show that a very accurate variational wave function, which is constructed by applying a long-range Jastrow factor to the noninteracting boson ground state, can describe the superfluid-insulator transition in any dimensionality. Moreover, by mapping the quantum averages over such a wave function into the partition function of a classical model, important insights into the insulating phase are uncovered. Finally, the evidence in favor of anomalous scenarios for the Mott transition in two dimensions is reported whenever additional long-range repulsive interactions are added to the Hamiltonian." @default.
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- W2063558767 date "2008-04-18" @default.
- W2063558767 modified "2023-09-30" @default.
- W2063558767 title "Mott transition in bosonic systems: Insights from the variational approach" @default.
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- W2063558767 doi "https://doi.org/10.1103/physrevb.77.144517" @default.
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