Department of Physics2024-11-0920111050-294710.1103/PhysRevA.83.0516062-s2.0-79961096058https://hdl.handle.net/20.500.14288/1252We use the Gutzwiller ansatz and analyze the phase diagram of the extended Bose-Hubbard Hamiltonian with on-site (U) and nearest-neighbor (V ) repulsions. For d-dimensional hypercubic lattices, when 2dV < U, it is well known that the ground state alternates between the charge-density-wave (CDW) and Mott insulators, and the supersolid (SS) phase occupies small regions around the CDW insulators. However, when 2dV > U, in this Rapid Communication, we show that the ground state has only CDW insulators, and more importantly, the SS phase occupies a much larger region in the phase diagram, existing up to very large hopping values which could be orders of magnitude higher than that of the well-known case. In particular, the SS-superfluid phase boundary increases linearly as a function of hopping when 2dV 1.5U, for which the prospects of observing the SS phase with dipolar Bose gases loaded into optical lattices is much higher.pdfMathematicsJournal Article1094-1622https://doi.org/10.1103/PhysRevA.83.051606291088000003Q1NOIR00010