NUMBER CONSERVING DERIVATION OF THE BCS EQUATIONS

被引:10
作者
DUSSEL, GG [1 ]
BES, DR [1 ]
机构
[1] COMIS NACL ENERGIA ATOM,DEPT FIS,BUENOS AIRES,ARGENTINA
关键词
D O I
10.1016/0375-9474(79)90116-7
中图分类号
O57 [原子核物理学、高能物理学];
学科分类号
070202 ;
摘要
The BCS equations are derived by means of the summation of a particular set of diagrams. For any finite value of π/Ω (where π is the number of pairs of particles and Ω is the degeneracy of the system), these diagrams yield the smallest contribution in powers of Ω-1. To this order, there is no fluctuation in the number of particles. © 1979.
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收藏
页码:392 / 402
页数:11
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