3 papers
cond-mat.stat-mech2026
Information Compression at Criticality
Simon Jiricek, Miroslav Hopjan, Boris Altshuler +2
Highly excited quantum states at the critical boundary of ergodicity are known to deviate from thermal behavior, yet their dynamical properties remain poorly understood. Here, we u…
cond-mat.stat-mech2025
Universal Relation between Spectral and Wavefunction Properties at Criticality
Simon Jiricek, Miroslav Hopjan, Vladimir Kravtsov +2
Quantum-chaotic systems exhibit several universal properties, ranging from level repulsion in the energy spectrum to wavefunction delocalization. On the other hand, if wavefunction…
cond-mat.dis-nn2024
Spectral properties of Levy Rosenzweig-Porter model via supersymmetric approach
Elizaveta Safonova, Mikhail Feigelman, Vladimir Kravtsov
By using the Efetov's super-symmetric formalism we computed analytically the mean spectral density for the Lévy and the Lévy -Rosenzweig-Porter random matrices which off-dia…