Iskalni niz:
išči po
išči po
išči po
išči po
Vrsta gradiva:
Jezik:
Št. zadetkov: 6
Low-temperature transport in out-of-equilibrium XXZ chains
Bruno Bertini, Lorenzo Piroli
Izvirni znanstveni članek
Oznake: kvantna statistična mehanika;kvantna integrabilnost;kvantni transport;termodinamika;quantum statistical mechanics;quantum integrability;quantum transport;thermodynamics;
We study the low-temperature transport properties of out-of equilibrium XXZ spin-1/2 chains. We consider the protocol where two semiinfinite chains are prepared in two thermal states at small but different temperatures and suddenly joined together. We focus on the qualitative and quantitative featur ...
Leto: 2018 Vir: Fakulteta za matematiko in fiziko (UL FMF)
Scrambling in random unitary circuits: exact results
Bruno Bertini, Lorenzo Piroli
Izvirni znanstveni članek
Oznake: neravnovesna statistična mehanika;kvantni kaos;nonequilibrium statistical mechanics;quantum chaos;
We study the scrambling of quantum information in local random unitary circuits by focusing on the tripartite information proposed by Hosur et al. We provide exact results for the averaged Rényi-2 tripartite information in two cases: (i) the local gates are Haar random and (ii) the local gates are d ...
Leto: 2020 Vir: Fakulteta za matematiko in fiziko (UL FMF)
Transport in the sine-Gordon field theory: from generalized hydrodynamics to semiclassics
Bruno Bertini, Lorenzo Piroli, Márton Kormos
Izvirni znanstveni članek
Oznake: statistična fizika;statistical physics;
The semiclassical approach introduced by Sachdev and collaborators proved to be extremely successful in the study of quantum quenches in massive field theories, both in homogeneous and inhomogeneous settings. While conceptually very simple, this method allows one to obtain analytic predictions for s ...
Leto: 2019 Vir: Fakulteta za matematiko in fiziko (UL FMF)
Entanglement evolution and generalised hydrodynamics: noninteracting systems
Bruno Bertini, Maurizio Fagotti, Lorenzo Piroli, Pasquale Calabrese
Izvirni znanstveni članek
Oznake: neravnovesna dinamika;večdelčni sistemi;kvantna prepletenost;kvantni transport;non-equilibrium dynamics;many-body systems;quantum entanglement;quantum transport;
The large-scale properties of homogeneous states after quantum quenches in integrable systems have been successfully described by a semiclassical picture of moving quasiparticles. Here we consider the generalisation for the entanglement evolution after an inhomogeneous quench in noninteracting syste ...
Leto: 2018 Vir: Fakulteta za matematiko in fiziko (UL FMF)
Spin-charge separation effects in the low-temperature transport of one-dimensional Fermi gases
Márton Mestyán, Bruno Bertini, Lorenzo Piroli, Pasquale Calabrese
Izvirni znanstveni članek
Oznake: neravnovesna statistična mehanika;kvantna statistična mehanika;Fermijev plin;nonequilibrium statistical mechanics;quantum statistical mechanics;Fermi gas;
We study the transport properties of a one-dimensional spinful Fermi gas, after a junction of two semi-infinite subsystems held at different temperatures. The ensuing dynamics is studied by analyzing the space-time profiles of local observables emerging at large distances x and times t, as a functio ...
Leto: 2019 Vir: Fakulteta za matematiko in fiziko (UL FMF)
Exact dynamics in dual-unitary quantum circuits
Lorenzo Piroli, Bruno Bertini, J. Ignacio Cirac, Tomaž Prosen
Izvirni znanstveni članek
Oznake: kvantna mehanika;nelinearna statistična mehanika;quantum mechanics;nonlinear statistical mechanics;
We consider the class of dual-unitary quantum circuits in 1 + 1 dimensions and introduce a notion of “solvable” matrix product states (MPSs), defined by a specific condition which allows us to tackle their time evolution analytically. We provide a classification of the latter, showing that they incl ...
Leto: 2020 Vir: Fakulteta za matematiko in fiziko (UL FMF)
Št. zadetkov: 6
Ključne besede:
Leto izdaje:
Avtorji:
Repozitorij:
Tipologija:
Jezik: