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Bardeen-Cooper-Schrieffer Theory of Finite-Size Superconducting Metallic Grains

Garcia-Garcia, A. and Urbina, Juan Diego and Yuzbashyan, E. and Richter, Klaus and Altshuler, B. (2008) Bardeen-Cooper-Schrieffer Theory of Finite-Size Superconducting Metallic Grains. Physical Review Letters 100, pp. 187001-1.

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Other URL: http://xxx.uni-augsburg.de/pdf/0710.2286eprint, http://scitation.aip.org/getabs/servlet/GetabsServlet?prog=normal&id=PRLTAO000100000018187001000001&idtype=cvips&gifs=yes


Abstract

We study finite size effects in superconducting metallic grains and determine the BCS order parameter and the low energy excitation spectrum in terms of the number of electrons, size, and shape of the grain. Our approach combines the BCS self-consistency condition, a semiclassical expansion for the spectral density and interaction matrix elements, and corrections to the BCS mean-field. In chaotic ...

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Export bibliographical data

Item Type:Article
Date:2008
Institutions:Physics > Institute of Theroretical Physics > Chair Professor Richter > Group Klaus Richter
Projects:Graduiertenkolleg Nichtlinearität und Nichtgleichgewicht
Subjects:500 Science > 530 Physics
Status:Published
Refereed:Yes, this version has been refereed
Created at the University of Regensburg:Yes
Owner: Timo Hartmann
Deposited On:25 May 2009 13:18
Last Modified:05 Aug 2009 13:57
Item ID:7806
Owner Only: item control page
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