Speaker
Prof.
Jakub Zakrzewski
(Jagiellonian University)
Description
I will discuss the Quantum Sun model as an example of 0-dimensional model exhibiting MBL. We introduce the interacting Anderson Quantum Sun model, which significantly deviates from the conventional expectations. In addition to standard localized and ergodic phases, we identify a regime that exhibits volume-law entanglement coexisting with intermediate spectral statistics. We also identify another nonstandard regime marked by Poisson level statistics, sub-volume entanglement growth, and rare-event-dominated correlations, indicative of emerging ergodic instabilities. The talk will be based on Phys. Rev. B113, L180203 (2026).