Marko Ljubotina (Avtor), Marko Žnidarič (Avtor), Tomaž Prosen (Avtor)

Povzetek

Equilibrium spatiotemporal correlation functions are central to understanding weak nonequilibrium physics. In certain local one-dimensional classical systems with three conservation laws they show universal features. Namely, fluctuations around ballistically propagating sound modes can be described by the celebrated Kardar-Parisi-Zhang (KPZ) universality class. Can such a universality class be found also in quantum systems? By unambiguously demonstrating that the KPZ scaling function describes magnetization dynamics in the SU(2) symmetric Heisenberg spin chain we show, for the first time, that this is so. We achieve that by introducing new theoretical and numerical tools, and make a puzzling observation that the conservation of energy does not seem to matter for the KPZ physics.

Ključne besede

kvantna statistična mehanika;quantum statistical mechanics;

Podatki

Jezik: Angleški jezik
Leto izida:
Tipologija: 1.01 - Izvirni znanstveni članek
Organizacija: UL FMF - Fakulteta za matematiko in fiziko
UDK: 536.93
COBISS: 3366756 Povezava se bo odprla v novem oknu
ISSN: 0031-9007
Št. ogledov: 761
Št. prenosov: 528
Ocena: 0 (0 glasov)
Metapodatki: JSON JSON-RDF JSON-LD TURTLE N-TRIPLES XML RDFA MICRODATA DC-XML DC-RDF RDF

Ostali podatki

Sekundarni jezik: Slovenski jezik
Sekundarne ključne besede: kvantna statistična mehanika;
Strani: str. 210602-1-210602-6
Letnik: ǂVol. ǂ122
Zvezek: ǂiss. ǂ21
Čas izdaje: 2019
DOI: 10.1103/PhysRevLett.122.210602
ID: 11238035