arXiv subjects

I. V. Kolokolov

Publications and source records attributed to I. V. Kolokolov.

22 records · Page 2Linked to original sources

arXiv1996

The Kosterlitz-Thouless transition in the XY Kagomé antiferromagnet

The problem of the Kosterlitz-Thouless (KT) transition in the highly frustrated XY Kagomé antiferromagnet is solved. The problem is mapped onto that of the KT transition in the XY ferromagnet on the hexagonal lattice. The transition temperature is found. It is shown that the spin correlation function exponentially decays with distance even in the low-temperature phase, in contrast to the order parameter correlation function, which decays algebraically with distance.

cond-mat↗

arXiv1994

1D-Disordered Conductor with Loops Immersed in a Magnetic Field

We investigate the conductance of a 1-D disordered conducting loop with two contacts, immersed in a magnetic flux. We show the appearance in this model of the Al'tshuler-Aronov-Spivak behaviour. We also investigate the case of a chain of loops distributed with finite density: in this case we show that the interference effects due to the presence of the loops can lead to the delocalization of the wave function.

cond-mat↗

arXiv1994

Statistics of the One-Electron Current in a One-Dimensional Mesoscopic Ring at Arbitrary Magnetic Fields

The set of moments and the distribution function of the one-electron current in a one-dimensional disordered ring with arbitrary magnetic flux are calculated.

cond-mat↗

arXiv1994

The spatial statistical properties of wave functions in a disordered finite one-dimensional sample

For a given wave function one can define a quantity $μ_E$ having a meaning of its inverse spatial size. The Laplace transform of the distribution function $P(μ_E)$ is calculated analytically for a 1D disordered sample with a finite length $L$.

cond-mat↗