Zhenyu Xu (Avtor), Aurelia Chenu (Avtor), Tomaž Prosen (Avtor), Adolfo del Campo (Avtor)

Povzetek

Quantum chaos imposes universal spectral signatures that govern the thermofield dynamics of a many-body system in isolation. The fidelity between the initial and time-evolving thermofield double states exhibits as a function of time a decay, dip, ramp, and plateau. Sources of decoherence give rise to a nonunitary evolution and result in information loss. Energy dephasing gradually suppresses quantum noise fluctuations and the dip associated with spectral correlations. Decoherence further delays the appearance of the dip and shortens the span of the linear ramp associated with chaotic behavior. The interplay between signatures of quantum chaos and information loss is determined by the competition among the decoherence, dip, and plateau characteristic times, as demonstrated in the stochastic Sachdev-Ye-Kitaev model.

Ključne besede

kvantna fizika;kvantni kaos;quantum physics;quantum chaos;

Podatki

Jezik: Angleški jezik
Leto izida:
Tipologija: 1.01 - Izvirni znanstveni članek
Organizacija: UL FMF - Fakulteta za matematiko in fiziko
UDK: 530.145
COBISS: 76226307 Povezava se bo odprla v novem oknu
ISSN: 2469-9950
Št. ogledov: 175
Št. prenosov: 75
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 fizika;kvantni kaos;
Strani: str. 064309-1-064309-11
Letnik: ǂVol. ǂ103
Zvezek: ǂiss. ǂ6
Čas izdaje: 2021
DOI: 10.1103/PhysRevB.103.064309
ID: 13398421