Improved Coupled Reservoir Model for Inelastic Scattering in One-Dimensional Mesoscopic Metal Rings
DING Hong-Sheng, CHEN Geng-Hua, ZHAO Shi-Ping, YANG Qian-Sheng
Institute of Physics and Center for Condensed Matter Physics,
Chinese Academy of Sciences, Beijing 100080
Improved Coupled Reservoir Model for Inelastic Scattering in One-Dimensional Mesoscopic Metal Rings
DING Hong-Sheng;CHEN Geng-Hua;ZHAO Shi-Ping;YANG Qian-Sheng
Institute of Physics and Center for Condensed Matter Physics,
Chinese Academy of Sciences, Beijing 100080
关键词 ：
73.23.Ra ,
75.20.En ,
73.23.-b
Abstract ： In order to strictly solve the problem of persistent current in one-dimensional mesoscopic metal rings, a model with a perfect ring coupled to an external reservoir by a four-lead junction is introduced to independently describe inelastic scattering. The junction is expressed by a 4 x 4 S-matrix, which is very similar to that used by Büttiker in sequential tunneling. Since the S-matrix is unitary, the current conservation keeps automatically. Since the quadruplet of the matrix problem can be reduced into two topologically separate doublets, it gives a simple and elegant method compared with the former description with 3 x 3 matrix.
Key words ：
73.23.Ra
75.20.En
73.23.-b
出版日期: 2002-04-01
引用本文:
DING Hong-Sheng;CHEN Geng-Hua;ZHAO Shi-Ping;YANG Qian-Sheng. Improved Coupled Reservoir Model for Inelastic Scattering in One-Dimensional Mesoscopic Metal Rings
[J]. 中国物理快报, 2002, 19(4): 550-552.
链接本文:
https://cpl.iphy.ac.cn/CN/
或
https://cpl.iphy.ac.cn/CN/Y2002/V19/I4/550
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2002, Vol. 19 
