Year: 2009
Type: article
Abstract: We use quantum Monte Carlo simulations to study the phase diagram of hard-core bosons with short-ranged attractive interactions, in the presence of uniform diagonal disorder. It is shown that moderate disorder stabilizes a glassy superfluid phase in a range of values of the attractive interaction for which the system is a Mott insulator, in the absence of disorder. A transition to an insulating Bose glass phase occurs as the strength of the disorder or interactions increases.
Source: Physical Review B
Authors: Long Dang, Massimo Boninsegni, Lode Pollet
Institutions: University of Alberta, ETH Zurich
Language: English
Subfield: Atomic and Molecular Physics, and Optics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W2072477105