1.

Finite-temperature Drude weight within the anisotropic Heisenberg chain

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

2.

Nonequilibrium quantum dynamics of a charge carrier doped into a Mott insulator

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