4 papers
Analytical Theory for Anomalous Diffusion in the Anderson Model with Heavy Tails
Elizaveta Safonova, Aleksey Lunkin, Mikhail Feigel'man
We develop an analytical theory of anomalous transport in a noninteracting Anderson model with heavy-tailed hopping amplitudes. The broad distribution of hopping amplitudes gives r…
Hilbert space signatures of non-ergodic glassy dynamics
Aleksey Lunkin, Nicole S. Ticea, Shashwat Kumar +292
Disorder in quantum many-body systems can drive transitions between ergodic and non-ergodic phases, yet the nature--and even the existence--of these transitions remains intensely d…
Density of states correlations in Lévy Rosenzweig-Porter model via supersymmetry approach
Elizaveta Safonova, Aleksey Lunkin, Mikhail Feigel' man
We studied global density-of-states correlation function for Lévy-Rosenzweig-Porter random matrix ensemble in the non-ergodic extended phase. Using an extension of Efetov's…
Two-dimensional Coulomb glass as a model for vortex pinning in superconducting films
Igor Poboiko, Mikhail Feigel'man
A glass model of vortex pinning in highly disordered thin superconducting films in magnetic fields at low temperatures is proposed. Strong collective pinning of a vo…