Title
Fragmentation and the Bose-glass phase transition of the disordered one-dimensional Bose gasFragmentation and the Bose-glass phase transition of the disordered one-dimensional Bose gas
Author
Faculty/Department
Faculty of Sciences. Physics
Research group
Theory of quantum systems and complex systems
Publication type
article
Publication
Lancaster, Pa,
Subject
Physics
Source (journal)
Physical review : A : atomic, molecular and optical physics. - Lancaster, Pa, 1990 - 2015
Volume/pages
83(2011):3, 5 p.
ISSN
1094-1622
1050-2947
Article Reference
033626
Carrier
E-only publicatie
Target language
English (eng)
Full text (Publishers DOI)
Abstract
We investigate the superfluid-insulator quantum phase transition in a disordered one-dimensional Bose gas in the mean-field limit by studying the probability distribution of the density. The superfluid phase is characterized by a vanishing probability to have zero density, whereas a nonzero probability marks the insulator phase. This relation is derived analytically and confirmed by a numerical study. This fragmentation criterion is particularly suited for detecting the phase transition in experiments. When a harmonic trap is included, the transition to the insulating phase can be extracted from the statistics of the local density distribution.
Full text (open access)
https://repository.uantwerpen.be/docman/irua/7b7b6e/07564632.pdf