Coherent phenomena in mesoscopic systems
arXiv:cond-mat/0005279 · doi:10.1088/0953-2048/13/8/315
Abstract
A mesoscopic system of cylindrical geometry made of a metal or a semiconductor is shown to exhibit features of a quantum coherent state. It is shown that magnetostatic interaction can play an important role in mesoscopic systems leading to an ordered ground state. The temperature below the system exhibits long-range order is determined. The self-consistent mean field approximation of the magnetostatic interaction is performed giving the effective Hamiltonian from which the self-sustaining currents can be obtained. The relation of quantum coherent state in mesoscopic cylinders to other coherent systems like superconductors is discussed.
REVTeX, 4 figures, in print in Supercond. Sci. Technol