JOINT ICTP/SISSA STATISTICAL PHYSICS SEMINAR Tuesday, 3 May 2011 - 11:30 hrs

[del_rio]

JOINT ICTP/SISSA STATISTICAL PHYSICS SEMINAR

 

Tuesday, 3 May 2011   -    11:30 hrs

 

Luigi Stasi Seminar Room

ICTP Leonardo Building - 1st floor



P. PRELOVSEK

 

(Ljubljana)

"Transport in pure and disordered spin chains"

 

Abstract

 

Spin chains represent interesting quantum many-body systems, well realized in several novel materials. Theoretical understanding of transport in clean and disordered spin chains will be reviewed in the talk. T>0 spin stiffness will be discussed in connection with the integrability of the model. In particular, the interplay of electron correlations and random static disorder will be analysed with respect to possible many-body Anderson localization. It will be shown that a single static impurity as well as coupled impurity spins at T>0 lead to the incoherent transport with a well defined current relaxation rate, allowing also for either cutting or healing effect

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Ms. Rosa del Rio
UNESCO-IAEA
The Abdus Salam International Centre
for Theoretical Physics
Strada Costiera 11- 34014 Trieste (Italy)
phone: +39-040-2240396
fax: +39-040-22407396