eprintid: 1333475
rev_number: 27
eprint_status: archive
userid: 608
dir: disk0/01/33/34/75
datestamp: 2011-12-16 19:47:24
lastmod: 2021-12-03 23:18:49
status_changed: 2011-12-16 19:47:24
type: article
metadata_visibility: show
item_issues_count: 0
creators_name: Green, AG
creators_name: Sondhi, SL
title: Nonlinear quantum critical transport and the Schwinger mechanism for a superfluid-Mott-insulator transition of bosons
ispublished: pub
divisions: UCL
divisions: B04
divisions: C06
divisions: F64
keywords: NONZERO-TEMPERATURE TRANSPORT, CRITICAL-POINTS, FILMS, ATOMS
note: © 2005 The American Physical Society
abstract: Scaling arguments imply that quantum-critical points exhibit universal nonlinear responses to external probes. We investigate the origins of such nonlinearities in transport, which is especially problematic since the system is necessarily driven far from equilibrium. We argue that for a wide class of systems the new ingredient that enters is the Schwinger mechanism-the production of carriers from the vacuum by the applied field-which is then balanced against a scattering rate that is itself set by the field. We show by explicit computation how this works for the case of the symmetric superfluid-Mott insulator transition of bosons.
date: 2005-12-31
publisher: AMERICAN PHYSICAL SOC
official_url: http://dx.doi.org/10.1103/PhysRevLett.95.267001
vfaculties: VMPS
oa_status: green
language: eng
primo: open
primo_central: open_green
article_type_text: Article
verified: verified_batch
elements_source: Web of Science
elements_id: 355157
doi: 10.1103/PhysRevLett.95.267001
language_elements: EN
lyricists_name: Green, Andrew
lyricists_id: AGGRE15
full_text_status: public
publication: PHYS REV LETT
volume: 95
number: 26
article_number: 267001
issn: 0031-9007
citation:        Green, AG;    Sondhi, SL;      (2005)    Nonlinear quantum critical transport and the Schwinger mechanism for a superfluid-Mott-insulator transition of bosons.                   PHYS REV LETT , 95  (26)    , Article 267001.  10.1103/PhysRevLett.95.267001 <https://doi.org/10.1103/PhysRevLett.95.267001>.       Green open access   
 
document_url: https://discovery.ucl.ac.uk/id/eprint/1333475/1/1333475.pdf