Transport in a one-dimensional isotropic Heisenberg model at high temperature


Por: Znidaric, M

Publicada: 1 dic 2011
Resumen:
Magnetization transport in a one-dimensional isotropic spin 1/2 Heisenberg model is studied. It is shown that in a nonequilibrium steady state at high temperature and constant small driving the magnetization current depends on the system length L as similar to 1/L-0.5, meaning that the diffusion constant diverges as similar to L-0.5. Spectral properties of a superoperator governing the relaxation towards a nonequilibrium steady state are also discussed.

Filiaciones:
Znidaric, M:
 Univ Nacl Autonoma Mexico, Inst Ciencias Fis, Cuernavaca 62191, Morelos, Mexico
ISSN: 17425468
Editorial
Institute of Physics Publishing, TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND, Reino Unido
Tipo de documento: Article
Volumen: 2011 Número: 12
Páginas:
WOS Id: 000302413800010
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