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Št. zadetkov: 3
Microcanonical free cumulants in lattice systems
Felix Fritzsch, Tomaž Prosen, Silvia Pappalardi
Izvirni znanstveni članek
Oznake: kvantna statistična mehanika;kvantni kaos;spinske verige;termalizacija lastnih stanj;teorija naključnih matrik;quantum statistical mechanics;spin chains;eigenstate thermalization;random matrix theory;
Recently, the full version of the eigenstate thermalization hypothesis (ETH) has been systematized using free probability. In this paper, we present a detailed discussion of the free-cumulants approach to many-body dynamics within the microcanonical ensemble. Differences between the latter and canon ...
Leto: 2025 Vir: Fakulteta za matematiko in fiziko (UL FMF)
Full eigenstate thermalization via free cumulants in quantum lattice systems
Silvia Pappalardi, Felix Fritzsch, Tomaž Prosen
Izvirni znanstveni članek
Oznake: termalizacija lastnih stanj;kvantni kaos;kvantna vezja;kvantna statistična mehanika;kvantna spinske verige;Floquetovi sistemi;teorija naključnih matrik;eigenstate thermalization;quantum chaos;quantum circuits;quantum statistical mechanics;quantum spin chains;Floquet systems;random matrix theory;
The eigenstate thermalization hypothesis (ETH) has been established as the general framework to understand quantum statistical mechanics. Only recently has the attention been paid to so-called full ETH, which accounts for higher-order correlations among matrix elements, and that can be rationalized ...
Leto: 2025 Vir: Fakulteta za matematiko in fiziko (UL FMF)
Scrambling and entanglement spreading in long-range spin chains
Silvia Pappalardi, Angelo Russomanno, Bojan Žunkovič, Fernando Iemini, Alessandro Silva, Rosario Fazio
Izvirni znanstveni članek
Oznake: kvantna statistična mehanika;kvantna mehanika;kvantna prepletenost;quantum statistical mechanics;quantum mechanics;quantum entanglement;
We study scrambling in connection with multipartite entanglement dynamics in regular and chaotic long-range spin chains, characterized by a well-defined semi-classical limit. For regular dynamics, scrambling and entanglement dynamics are found to be very different: up to the Ehrenfest time, they ris ...
Leto: 2018 Vir: Fakulteta za matematiko in fiziko (UL FMF)
Št. zadetkov: 3
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