2 papers
cond-mat.str-el2025
Tunable Hilbert space fragmentation and extended critical regime
Mateusz Lisiecki, Janez BonÄa, Marcin Mierzejewski +2
Systems exhibiting the Hilbert-space fragmentation are nonergodic, and their Hamiltonians decompose into exponentially many blocks in the computational basis. In many cases, these…
cond-mat.stat-mech2025
Localization transitions in quadratic systems without quantum chaos
Mateusz Lisiecki, Lev Vidmar, Patrycja Åydżba
Transitions from delocalized to localized eigenstates have been extensively studied in both quadratic and interacting models. The delocalized regime typically exhibits diffusion an…