Bose-Einstein condensation in quantum glasses
arXiv:0909.2328 · doi:10.1103/PhysRevLett.103.215302
Abstract
The role of geometrical frustration in strongly interacting bosonic systems is studied with a combined numerical and analytical approach. We demonstrate the existence of a novel quantum phase featuring both Bose-Einstein condensation and spin-glass behaviour. The differences between such a phase and the otherwise insulating "Bose glasses" are elucidated.