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按Büttiker等人的方法,本文对两种非对称一维正常金属环求出了低温下的透射系数解析表式,并由此讨论了该结构中有趣的透射几率共振。在本文给出的透射系数一般表式中取两个极限,得到了与文献[11]类似的结果,同时也附带指出了文献[11]在计算对称环的透射系数中的一些差错。Basing on the method of Büttiker et al., the analytic expressions of low temperature transmission amplitude for two kinds of normal metal ring with non-symmetric branches are obtained. The interesting resonances in the transmission probability for such structures are discussed. The results derived from the general analytic expression in two special limits are similar to those in reference [11] . In addition, we point out that there are some mistakes in equations (4.24) and (4.39) of reference [11] .
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