1.

Incoherent transport induced by a single static impurity in a Heisenberg chain

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

2.

Conductivity in disordered one-dimensional system of interacting fremions

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

3.

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

4.

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

5.

Spin hydrodynamics in the S=1/2 anisotropic Heisenberg chain

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