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Št. zadetkov: 2
Exact spectral form factors of noninteracting fermions with Dyson statistics
Tatsuhiko N. Ikeda, Lev Vidmar, Michael O. Flynn
Izvirni znanstveni članek
Oznake: kvantni kaos;neurejeni sistemi;physics;quantum chaos;disordered systems;localization;critical point;
The spectral form factor (SFF) is a powerful diagnostic of random matrix behavior in quantum many-body systems. We introduce a family of random circuit ensembles whose SFFs can be computed exactly. These ensembles describe the evolution of noninteracting fermions in the presence of correlated on-sit ...
Leto: 2025 Vir: Institut Jožef Stefan (IJS)
Single-particle universality of the many-body spectral form factor
Michael O. Flynn, Lev Vidmar, Tatsuhiko N. Ikeda
Izvirni znanstveni članek
Oznake: kvantni kaos;neurejeni sistemi;physics;quantum chaos;disordered systems;
We consider systems of fermions evolved by noninteracting unitary circuits with correlated on-site potentials. When these potentials are drawn from the eigenvalue distribution of a circular random matrix ensemble, the single-particle sector exhibits chaotic dynamics. The corresponding many-body spec ...
Leto: 2025 Vir: Institut Jožef Stefan (IJS)
Št. zadetkov: 2
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