Josephson结圆对称环域模型的微扰分析  

PERTURBATIVE ANALYSIS OF THE CIRCULAR SYMMETRIC ANNULAR MODEL OF THE JOSEPHSON JUNCTION

作　　者：徐昆明[1] 

机构地区：[1]浙江大学物理系,杭州310027

出　　处：《低温物理学报》1990年第4期256-259,共4页Low Temperature Physical Letters

摘　　要：本文利用文献[3]中关于大半径圆对称 Sine-Gordon 孤子的微扰理论结果,从理论上论证了圆对称环域 Josephson 结模型的合理性.我们发现,孤子的最小半径,ρ_(min) 相应于环域结的内半径,而ρ=2ρ_s 可以作为环域结的外半径.Based on the results of perturbation theory for the circular symmetric Sine-Gordon soli-tons of large radius in Ref.[3],we try to prove the circular symmetric annular model of the Josephson junction to be reasonable and just.We find that the minimum radius of solitons is corresponding to the inside radius of the annular junction,and ρ*=2ρs may be regarded as its outside radius.

关 键 词：JOSEPHSON结 环域 模型 微扰 

分 类 号：O511.1[理学—低温物理]