It has been shown that Mott insulator in an external field reveals very different behavior whether it is integrable or nonintegrable. For the first case results indicate on the existence of an ideal insulator, not conducting at any temperature.
COBISS.SI-ID: 2354788
The dynamics of a driven Holsein polaron is analysed whereby under constant field the polarton reaches constant velocity by emitting continuously phonons.
COBISS.SI-ID: 24626215