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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


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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Item type:Article
Institutions:Physics > Institute of Theroretical Physics > Chair Professor Richter > Group Klaus Richter
Projects:Graduiertenkolleg Nichtlinearität und Nichtgleichgewicht
Dewey Decimal Classification:500 Science > 530 Physics
Refereed:Yes, this version has been refereed
Created at the University of Regensburg:Yes
Deposited on:25 May 2009 13:18
Last modified:08 Apr 2016 09:24
Item ID:7806
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