The spin vortices are shown to be created through the Kibble-Zurek (KZ) mechanism in a quantum phase transition of a spin-1 ferromagnetic Bose-Einstein condensate, when the applied magnetic field is quenched below a critical value. It is shown that the magnetic correlation functions have finite correlation lengths, and magnetizations at widely separated positions grow in random directions, resu...

Adsorbates or other defects greatly affect the physics and chemistry of surfaces. They cause, for example, scattering intensity peaks in between Bragg angles, giving rise to diffusive scattering. This phenomenon is characterized by an incoherence among particles scattered from different defects, and is well illustrated by He scattering from CO molecules adsorbed on the Pt~111! surface, for whic...

One of the causes of perturbation at vertical intakes is the happening of vortices with an air core. The vortices with an air core occur whenever the submergence of the intake is less than a critical value. Anti-vortex devices and specially plates are used to avoid the negative effects of the air-core vortices. If plates are used, then the geometry of them should be studied experimentally. Acco...

The paper has been prepared for the JETP issue, dedicated to 95th birthday of E.I. Rashba, who stood at origins macroscopic quantum tunneling together with his colleagues from Landau Institute S.V. Iordansky and A.M. Finkelshtein. They pave way studying in various systems. In this paper, approach is extended cosmological objects such as a black hole de Sitter Universe. particular, allowed calcu...

We study the relaxation dynamics of an isolated zero temperature quasi-two-dimensional superfluid Bose-Einstein condensate that is imprinted with a spatially random distribution of quantum vortices. Following a period of vortex annihilation the remaining vortices self-organize into two macroscopic coherent "Onsager vortex" clusters that are stable indefinitely--despite the absence of driving or...

The formation of vortices by topological phase engineering has been realized experimentally to create the first two- and four-quantum vortices in dilute atomic Bose-Einstein condensates. We consider a similar system, but in addition to the Ioffe-Pritchard magnetic trap we employ an additional hexapole field. By controlling cyclically the strengths of these magnetic fields, we show that a fixed ...

The problem of a periodic scalar field on a two-dimensional dynamical random lattice is studied with the inclusion of vortices in the action. Using a random matrix formulation, in the continuum limit for genus zero surfaces the partition function is found exactly, as a function of the chemical potential for vortices of unit winding number, at a specific radius in the plasma phase. This solution...

Motivated by the correlated monopoles and vortices observed in lattice Quantum Chromodynamics (QCD), using Cho decomposition method two successive gauge transformations which lead to observation of chain configurations that include both center vortices, we obtain a Lagrangian density explicitly indicates these magnetic defects interaction between them.

The motion of a single vortex originates chaos in the quantum fluid defined in Bohm's interpretation of quantum mechanics. Here we analize this situation in a very simple case: one single vortex in a rectangular billiard.

The decay of quantized vortex line length in quantum turbulence at zero temperature is studied numerically by solving the Gross-Pitaevskii equation with a small-scale dissipation. The obtained decay of the vortex line length L is consistent with the L ∝ t −3/2 behavior which supports the Kolmogorov energy spectrum of quantum turbulence. The mechanism of the decay is discussed.