Quantum Force in a Superconductor

Abstract

A contradiction of the Little-Parks experiment with the Ohm's law and other fundamental laws is explained. This explanation shows that the Little-Parks oscillations of the loop resistance are an experimental evidence of a direct (non-chaotic) Brownian motion. The Langevin force is connected with a change of the momentum circulation of superconducting pairs because of the quantization. Its average value can be non-zero because of the quantization. The existence of a direct Brownian motion contradicts to the principle on which the second law of thermodynamic is based. Therefore the Little-Parks experiment is evidence of a possibility of violation of the second law. In the last years other authors have stated also violation of the second law in different quantum systems: A.E.Allahverdyan and Th.M.Nieuwenhuizen, PRL 85, 1799 (2000); cond-mat/0011389; V.Capec and J.Bok, Czech.J. of Phys. 49, 1645 (1999); cond-mat/0012056; Physica A 290, 379 (2001); P. Weiss, Science News, 158, 234 (2000).

4 pages, 0 figures, will be published in Phys.Rev.B

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