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Quantum Phases of Soft-Core Dipolar Bosons in Optical Lattices
D. Grimmer, A. Safavi-Naini, B. Capogrosso-Sansone +1
We study the phase diagram of a system of soft-core dipolar bosons confined to a two-dimensional optical lattice layer. We assume that dipoles are aligned perpendicular to the laye…
Analysis and resolution of the ground-state degeneracy of the two-component Bose-Hubbard model
Wei Wang, Vittorio Penna, Barbara Capogrosso-Sansone
We study the degeneracy of the ground-state energy of the two-component Bose-Hubbard model and of the perturbative correction . We show that the degeneracy properties of $…
Quantum phases of hard-core dipolar bosons in coupled 1D optical lattices
A. Safavi-Naini, B. Capogrosso-Sansone, A. Kuklov
Hard-core dipolar bosons trapped in a parallel stack of N>=2 1D optical lattices (tubes) can develop several phases made of composites of particles from different tubes: superfluid…