Supersolid-superfluid phase separation in the extended Bose-Hubbard model
Supersolid-superfluid phase separation in the extended Bose-Hubbard model
Recent studies have suggested a new phase in the extended Bose-Hubbard model in one dimension at integer filling [1,2]. In this work, we show that this new phase is phase-separated into a supersolid and superfluid part, generated by mechanical instability. Numerical simulations are performed by means of the density matrix …