Alexios A. Michailidis (Avtor), Marko Žnidarič (Avtor), Mariya V. Medvedyeva (Avtor), Dmitry A. Abanin (Avtor), Tomaž Prosen (Avtor), Z. Papić (Avtor)

Povzetek

Many-body quantum systems typically display fast dynamics and ballistic spreading of information. Here we address the open problem of how slow the dynamics can be after a generic breaking of integrability by local interactions. We develop a method based on degenerate perturbation theory that reveals slow dynamical regimes and delocalization processes in general translation invariant models, along with accurate estimates of their delocalization time scales. Our results shed light on the fundamental questions of the robustness of quantum integrable systems and the possibility of many-body localization without disorder. As an example, we construct a large class of one-dimensional lattice models where, despite the absence of asymptotic localization, the transient dynamics is exceptionally slow, i.e., the dynamics is indistinguishable from that of many-body localized systems for the system sizes and time scales accessible in experiments and numerical simulations.

Ključne besede

kvantna mehanika;statistična fizika;quantum mechanics;statistical physics;

Podatki

Jezik: Angleški jezik
Leto izida:
Tipologija: 1.01 - Izvirni znanstveni članek
Organizacija: UL FMF - Fakulteta za matematiko in fiziko
UDK: 536.93
COBISS: 3185508 Povezava se bo odprla v novem oknu
ISSN: 2469-9950
Št. ogledov: 1398
Št. prenosov: 525
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 mehanika;statistična fizika;
Strani: str. 104307-1-104307-10
Letnik: ǂVol. ǂ97
Zvezek: ǂiss. ǂ10
Čas izdaje: 2018
DOI: 10.1103/PhysRevB.97.104307
ID: 10920267