Alessio Lerose (Avtor), Jamir Marino (Avtor), Bojan Žunkovič (Avtor), Andrea Gambassi (Avtor), Alessandro Silva (Avtor)

Povzetek

We investigate the robustness of a dynamical phase transition against quantum fluctuations by studying the impact of a ferromagnetic nearest-neighbor spin interaction in one spatial dimension on the nonequilibrium dynamical phase diagram of the fully connected quantum Ising model. In particular, we focus on the transient dynamics after a quantum quench and study the prethermal state via a combination of analytic time-dependent spin wave theory and numerical methods based on matrix product states. We find that, upon increasing the strength of the quantum fluctuations, the dynamical critical point fans out into a chaotic dynamical phase within which the asymptotic ordering is characterized by strong sensitivity to the parameters and initial conditions. We argue that such a phenomenon is general, as it arises from the impact of quantum fluctuations on the mean-field out of equilibrium dynamics of any system which exhibits a broken discrete symmetry.

Ključne besede

kvantna mehanika;neravnovesna statistična mehanika;quantum mechanics;nonequilibrium 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: 3192932 Povezava se bo odprla v novem oknu
ISSN: 0031-9007
Št. ogledov: 805
Št. prenosov: 480
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;neravnovesna statistična mehanika;
Strani: str. 130603-1-130603-5
Letnik: ǂVol. ǂ120
Zvezek: ǂiss. ǂ13
Čas izdaje: 2018
DOI: 10.1103/PhysRevLett.120.130603
ID: 10983604