|
Title
|
|
|
|
Superfluid to Bose-Glass transition in a 1D weakly interacting Bose gas
|
|
|
Author
|
|
|
|
|
|
|
Abstract
|
|
|
|
| We study the one-dimensional Bose gas in spatially correlated disorder at zero temperature, using an extended density-phase Bogoliubov method. We analyze, in particular, the decay of the one-body density matrix and the behavior of the Bogoliubov excitations across the phase boundary. We observe that the transition to the Bose-glass phase is marked by a power-law divergence of the density of states at low energy. A measure of the localization length displays a power-law energy dependence in both regions, with the exponent equal to -1 at the boundary. We draw the phase diagram of the superfluid-insulator transition in the limit of small interaction strength. |
|
|
|
Language
|
|
|
|
English
|
|
|
Source (journal)
|
|
|
|
Physical review letters. - New York, N.Y., 1958, currens
|
|
|
Publication
|
|
|
|
New York, N.Y.
:
American Physical Society
,
2009
|
|
|
ISSN
|
|
|
|
0031-9007
[print]
1079-7114
[online]
|
|
|
Volume/pages
|
|
|
|
103
:3
(2009)
, 4 p.
|
|
|
Article Reference
|
|
|
|
030403
|
|
|
ISI
|
|
|
|
000268088300003
|
|
|
Medium
|
|
|
|
E-only publicatie
|
|
|
Full text (Publisher's DOI)
|
|
|
|
|
|
|
Full text (open access)
|
|
|
|
|
|