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Incoherent transport induced by a single static impurity in a Heisenberg chain


Barišić, Osor Slaven; Prelovšek, Peter; Metavitsiadis, Alexandros; Zotos, Xenofon
Incoherent transport induced by a single static impurity in a Heisenberg chain // Physical Review B - Condensed Matter and Materials Physics, 80 (2009), 12; 125118-1 doi:10.1103/PhysRevB.80.125118 (međunarodna recenzija, članak, znanstveni)


Naslov
Incoherent transport induced by a single static impurity in a Heisenberg chain

Autori
Barišić, Osor Slaven ; Prelovšek, Peter ; Metavitsiadis, Alexandros ; Zotos, Xenofon

Izvornik
Physical Review B - Condensed Matter and Materials Physics (1098-0121) 80 (2009), 12; 125118-1

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
Transport; impurity; Heisenberg chain;

Sažetak
The effect of a single static impurity on the many-body states and on the spin and thermal transport in the one-dimensional anisotropic Heisenberg chain at finite temperatures is studied. Whereas the pure Heisenberg model reveals Poisson level statistics and dissipationless transport due to integrability, we show using the numerical approach that a single impurity induces Wigner-Dyson level statistics and at high enough temperature incoherent transport within the chain, whereby the relaxation time and d.c. conductivity scale linearly with length.

Izvorni jezik
Engleski

Znanstvena područja
Fizika



POVEZANOST RADA


Projekt / tema
035-0000000-3187 - Kriticne pojave i sustavi izvan ravnoteze (Katarina Uzelac, )

Ustanove
Institut za fiziku, Zagreb

Autor s matičnim brojem:
Osor-Slaven Barišić, (226036)

Časopis indeksira:


  • Current Contents Connect (CCC)
  • Web of Science Core Collection (WoSCC)
    • SCI-EXP, SSCI i/ili A&HCI
  • Scopus


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