It was found, that a single static local impurity, added into the integrable spin system, changes qualitatively the transport from a dissipationless into a normal incoherent one.
COBISS.SI-ID: 2208868
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
Using numerical analysis of small systems it is shown that the result for the Drude weight at high temperatures agrees with one of Bethe Ansatz calculations
COBISS.SI-ID: 2391908
It is shown that a charge carrier in a Mott insulator, driven by constant electric field, reaches final velocity via a continuous emission of magnon excitations
COBISS.SI-ID: 24707879
It was shown that the integrable Heiseberg model at finite temperatures exhibits spin anomalous dynamics at small wavevectors, analogous to noninteracting fermions
COBISS.SI-ID: 2521956