Self-consistent Hartree-Fock and path-integral Monte Carlo simulations reveal a wide supersolid phase at low temperatures in 2D soft-core bosons, with possible hexatic order between normal solid and fluid phases.
(D2) The matrix elements of the density matrix R are the expectation values ⟨ˆb† k ˆbk′⟩
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Supersolid phase in two-dimensional soft-core bosons at finite temperature
Self-consistent Hartree-Fock and path-integral Monte Carlo simulations reveal a wide supersolid phase at low temperatures in 2D soft-core bosons, with possible hexatic order between normal solid and fluid phases.