It has been shown that even weak repulsive interaction between fermions destroys the Anderson localization due to disorder and leads to nonzero electrical conductivity at finite temperatures.
COBISS.SI-ID: 2288740
It has been shown that the frustrated spin chain as modelled with the J1-J2 model exhibits anomalous dynamical correlations. With the novel FTD-DMRG method we establishe the existence of narrow central peak at nonzero temperature which is the consequence of spinon deconfinement.
COBISS.SI-ID: 23878183