Green, AG;
Sondhi, SL;
(2005)
Non-linear quantum critical transport and the Schwinger Mechanism.
ArXiv
![]() Preview |
Text
0501758v1.pdf Available under License : See the attached licence file. Download (146kB) |
![]() Preview |
Text (licence)
RPS deposit licence.pdf Download (94kB) |
Abstract
Scaling arguments imply that quantum critical points exhibit universal non-linear responses to external probes. We investigate the origins of such non-linearities 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 which 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.
Type: | Article |
---|---|
Title: | Non-linear quantum critical transport and the Schwinger Mechanism |
Open access status: | An open access version is available from UCL Discovery |
Publisher version: | https://doi.org/10.48550/arXiv.cond-mat/0501758 |
Language: | English |
Additional information: | This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions. |
UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > London Centre for Nanotechnology |
URI: | https://discovery.ucl.ac.uk/id/eprint/1333460 |
Archive Staff Only
![]() |
View Item |