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Št. zadetkov: 3
Quasilocalized excitations induced by long-range interactions in translationally invariant quantum spin chains
Alessio Lerose, Bojan Žunkovič, Alessandro Silva, Andrea Gambassi
Izvirni znanstveni članek
Oznake: kvantna mehanika;kvantne spinske verige;quantum mechanics;quantum spin chains;
We show that long-range ferromagnetic interactions in quantum spin chains can induce spatial quasi-localization of topological magnetic defects, i.e., domain-walls, even in the absence of quenched disorder. Utilizing matrix-product-states numerical techniques, we study the non-equilibrium evolution ...
Leto: 2019 Vir: Fakulteta za matematiko in fiziko (UL FMF)
Chaotic dynamical ferromagnetic phase induced by nonequilibrium quantum fluctuations
Alessio Lerose, Jamir Marino, Bojan Žunkovič, Andrea Gambassi, Alessandro Silva
Izvirni znanstveni članek
Oznake: kvantna mehanika;neravnovesna statistična mehanika;quantum mechanics;nonequilibrium statistical mechanics;
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 ...
Leto: 2018 Vir: Fakulteta za matematiko in fiziko (UL FMF)
Impact of nonequilibrium fluctuations on prethermal dynamical phase transitions in long-range interacting spin chains
Alessio Lerose, Bojan Žunkovič, Jamir Marino, Andrea Gambassi, Alessandro Silva
Izvirni znanstveni članek
Oznake: kvantna mehanika;neravnovesna statistična mehanika;spinske verige;quantum mechanics;nonequilibrium statistical mechanics;spin chains;
We study the nonequilibrium phase diagram and the dynamical phase transitions occurring during the prethermalization of nonintegrable quantum spin chains, subject to either quantum quenches or linear ramps of a relevant control parameter. We consider spin systems in which long-range ferromagnetic in ...
Leto: 2019 Vir: Fakulteta za matematiko in fiziko (UL FMF)
Št. zadetkov: 3
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