B. M. Kemburi, V. W. Scarola
We theoretically study the stability of lattice supersolid states in the
extended Bose-Hubbard model with bounded spatial disorder. We construct a
disorder mean field theory and compare with quantum Monte Carlo calculations.
The supersolid survives weak disorder on the simple cubic lattice. We also find
that increasing disorder strength can transform a lattice solid into a
supersolid as it tends to percolate through the disorder landscape.
View original:
http://arxiv.org/abs/1110.2957
No comments:
Post a Comment