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Št. zadetkov: 3
Optical manipulation of bipolarons in a system with nonlinear electron-phonon coupling
Klemen Kovač, Denis Golež, Marcin Mierzejewski, Janez Bonča
Izvirni znanstveni članek
Oznake: fizika kondenzirane snovi;bipolaroni;elektron-fononska sklopitev;condensed matter physics;bipolarons;electron-phonon coupling;
We investigate full quantum mechanical evolution of two electrons nonlinearly coupled to quantum phonons and simulate the dynamical response of the system subject to a short spatially uniform optical pulse that couples to dipole-active vibrational modes. Nonlinear electron-phonon coupling can either ...
Leto: 2024 Vir: Fakulteta za matematiko in fiziko (UL FMF)
Normal weak eigenstate thermalization
Patrycja Łydżba, R. Świętek, Marcin Mierzejewski, Marcos Rigol, Lev Vidmar
Izvirni znanstveni članek
Oznake: kvantni kaos;termalizacija;lokalizacija;quantum chaos;thermalization;localization;
Eigenstate thermalization has been numerically shown to occur for few-body observables in a wide range of nonintegrable models. For intensive sums of few-body observables, a weaker version of eigenstate thermalization known as weak eigenstate thermalization has been proved to occur in general. Here, ...
Leto: 2024 Vir: Fakulteta za matematiko in fiziko (UL FMF)
Tunable Hilbert space fragmentation and extended critical regime
Mateusz Lisiecki, Janez Bonča, Marcin Mierzejewski, Jacek Herbrych, Patrycja Łydżba
Izvirni znanstveni članek
Oznake: termalizacija lastnih stanj;močno korelirani sistemi;integrabilni sistemi;točna diagonalizacija;eigenstate thermalization;strongly correlated systems;integrable systems;exact diagonalization;
Systems exhibiting the Hilbert-space fragmentation are nonergodic, and their Hamiltonians decompose into exponentially many blocks in the computational basis. In many cases, these blocks can be labeled by eigenvalues of statistically localized integrals of motion (SLIOMs), which play a similar role ...
Leto: 2025 Vir: Fakulteta za matematiko in fiziko (UL FMF)
Št. zadetkov: 3
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