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Št. zadetkov: 2
Similarity between a many-body quantum avalanche model and the ultrametric random matrix model
Jan Šuntajs, Miroslav Hopjan, Wojciech De Roeck, Lev Vidmar
Izvirni znanstveni članek
Oznake: kvantna statistična mehanika;quantum statistical mechanics;
In the field of ergodicity-breaking phases, it has been recognized that quantum avalanches can destabilize many-body localization at a wide range of disorder strengths. This has in particular been demonstrated by the numerical study of a toy model, sometimes simply called the “avalanche model” or th ...
Leto: 2024 Vir: Fakulteta za matematiko in fiziko (UL FMF)
Critical quantum dynamics of observables at eigenstate transitions
Simon Jiricek, Miroslav Hopjan, Patrycja Łydżba, F. Heidrich-Meisner, Lev Vidmar
Izvirni znanstveni članek
Oznake: kvantna mehanika;kvantni kaos;Andersonova lokalizacija;fazni prehodi;quantum mechanics;quantum chaos;Anderson localization;phase transitions;
It is an outstanding goal to unveil the key features of quantum dynamics at eigenstate transitions. Focusing on quadratic fermionic Hamiltonians that exhibit localization transitions, we identify physical observables that exhibit scale-invariant critical dynamics at the transition when quenched from ...
Leto: 2024 Vir: Fakulteta za matematiko in fiziko (UL FMF)
Št. zadetkov: 2
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