Наукова електронна бібліотека
періодичних видань НАН України
періодичних видань НАН України
Weak dissipation does not result in disappearance of persistent current
Репозиторій DSpace/Manakin
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Weak dissipation does not result in disappearance of persistent current
Тема:
Quantum coherent effects in superconductors and normal metals
Інший ID:
PACS: 73.23.Ra, 74.78.Na
Посилання:
Weak dissipation does not result in disappearance of persistent current / V.L. Gurtovoi, A.I. Ilin, A.V. Nikulov, V.A. Tulin // Физика низких температур. — 2010. — Т. 36, № 10-11. — С. 1209–1218. — Бібліогр.: 44 назв. — англ.
Підтримка:
This work has been supported by a grant «Possible applications of new mesoscopic quantum effects for making of element basis of quantum computer, nanoelectronics and micro-system technics» of the Fundamental Research Program of ITCS department of RAS and the Russian Foundation of Basic Research grant 08-02-99042-r-ofi.
Дата:
2010
Переглядів:
770
Завантажень:
347
Анотація:
Experimental results obtained last years corroborate a prediction made by I.O. Kulik forty years ago that the energy dissipation does not result in disappearance of equilibrium circular current observable in the normal state of superconductor rings and normal metal rings. Contrary interpretations of the persistent current as a Brownian motion or a dissipationless current are compared in the point of view of the observations of this phenomenon at presence of an electric potential difference. Distinctions between the quantum phenomena at atomic and mesoscopic levels are accentuated. In connection of the quantum oscillations in magnetic field of potential difference observed on asymmetric rings with the persistent current, it is pointed out that an experimental check of such phenomenon at thermodynamic equilibrium is possible.
