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6 papers · 2 filters
Superfluidity of indirect excitons in a quantum dot
Yu. E. Lozovik, S. A. Verzakov, M. Willander
The superfluidity and Bose-Einstein condensation of indirect excitons in two-dimensional quantum dot are studied by path-integral Monte Carlo simulations. The temperature dependenc…
Phase diagram of 2D array of mesoscopic granules
A. I. Belousov, S. A. Verzakov, Yu. E. Lozovik
A lattice boson model is used to study ordering phenomena in regular 2D array of superconductive mesoscopic granules, Josephson junctions or pores filled with a superfluid helium.…
Josephson array of mesoscopic objects. Modulation of system properties through the chemical potential
A. I. Belousov, S. A. Verzakov, Yu. E. Lozovik
The phase diagram of a two-dimensional Josephson array of mesoscopic objects is examined. Quantum fluctuations in both the modulus and phase of the superconducting order parameter…
Mesoscopic and microscopic dipole clusters: Structure and phase transitions
A. I. Belousov, Yu. E. Lozovik
Two dimensional (2D) classical system of dipole particles confined by a quadratic potential is studied. For clusters of N < 81 particles ground state configurations and appropriate…
Transport of magnetoexcitons in single and coupled quantum wells
Yu. E. Lozovik, A. M. Ruvinsky
The transport relaxation time and the mean free path of magnetoexcitons in single and coupled quantum wells are calculated ( is the magnetic momentum of the magnetoexcito…
New model for system of mesoscopic Josephson contacts
A. I. Belousov, Yu. E. Lozovik
Quantum fluctuations of the phases of the order parameter in 2D arrays of mesoscopic Josephson junctions and their effect on the destruction of superconductivity in the system are…