Pregled bibliografske jedinice broj: 489472
Conductivity in a disordered one-dimensional system of interacting fermions
Conductivity in a disordered one-dimensional system of interacting fermions // Physical Review B - Condensed Matter and Materials Physics, 82 (2010), 161106(R)-1 doi:10.1103/PhysRevB.82.161106 (međunarodna recenzija, članak, znanstveni)
CROSBI ID: 489472 Za ispravke kontaktirajte CROSBI podršku putem web obrasca
Naslov
Conductivity in a disordered one-dimensional system of interacting fermions
Autori
Barišić, Osor Slaven ; Prelovšek, Peter
Izvornik
Physical Review B - Condensed Matter and Materials Physics (1098-0121) 82
(2010);
161106(R)-1
Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni
Ključne riječi
many-body localization; disorder; conductivity; spin chain
Sažetak
Dynamical conductivity in a disordered one-dimensional model of interacting fermions is studied numerically at high temperatures and in the weak-interaction regime in order to find a signature of many-body localization and vanishing d.c. transport coefficients. On the contrary, we find in the regime of moderately strong local disorder that the d.c. conductivity scales linearly with the interaction strength while being exponentially dependent on the disorder. According to the behavior of the charge stiffness evaluated at the fixed number of particles, the absence of the many-body localization seems related to an increase of the effective localization length with the interaction.
Izvorni jezik
Engleski
Znanstvena područja
Fizika
POVEZANOST RADA
Projekti:
035-0000000-3187 - Kriticne pojave i sustavi izvan ravnoteze (Uzelac, Katarina, MZOS ) ( CroRIS)
Ustanove:
Institut za fiziku, Zagreb
Profili:
Osor-Slaven Barišić
(autor)
Citiraj ovu publikaciju:
Časopis indeksira:
- Current Contents Connect (CCC)
- Web of Science Core Collection (WoSCC)
- SCI-EXP, SSCI i/ili A&HCI
- Scopus
