Groud-State Properties of a Supersolid in RPA

Stoffel, Andre; Gulacsi, Miklos

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Groud-State Properties of a Supersolid in RPA

Date

2009

Authors

Stoffel, Andre

Gulacsi, Miklos

Publisher

Springer

Abstract

We investigate the newly discovered supersolid phase by solving in random-phase approximation the anisotropic Heisenberg model of the hard-core boson 4He lattice at zero temperature. We include nearest and next-nearest neighbor interactions and calculate