Fragile extended phases in the log-normal Rosenzweig-Porter model
Fragile extended phases in the log-normal Rosenzweig-Porter model
In this paper, we suggest an extension of the Rosenzweig-Porter (RP) model, the LN-RP model, in which the off-diagonal matrix elements have a wide, log-normal distribution. We argue that this model is more suitable to describe a generic many-body localization problem. In contrast to RP model, in LN-RP model, a …