介观耦合金属环中的持续电流

量子电子学报 , 2004, 21(4): 481-485. doi: 10.3969/j.issn.1007-5461.2004.04.019

介观耦合金属环中的持续电流

嵇英华 ^1, , 万向东 ^2, , 陈明玉 ^3, , 吴云翼 ^4, , 雷敏生 ^5,

1.江西师范大学,江西,南昌,330027;江西省光电子与通信重点实验室,江西,南昌,330027

2.江西师范大学,江西,南昌,330027

3.江西师范大学,江西,南昌,330027

4.江西师范大学,江西,南昌,330027

5.江西师范大学,江西,南昌,330027;江西省光电子与通信重点实验室,江西,南昌,330027

基金项目: 江西省自然科学基金(0212018,0312019)

关键词：量子光学 , 介观金属环 , 持续电流 , 耦合因素

Persistent currents in mesoscopic coupling metallic ring

在考虑电荷是量子化的基础上,计算了处在外加磁场中的三个有相互耦合作用的介观金属环中的持续电流,分析研究了耦合因素对金属环中持续电流的影响.结果显示,持续电流的幅度不仅受耦合的强度而且还受耦合的相对方向的共同影响.

参考文献

[1]	Buttiker M, Imry Y, Landauer R. Josephson behavior in small normal one-dimensional rings [J]. Phys. Lett. A,1983, 96: 365.
[2]	Levy L P, et al. Magnetization of mesoscopic copper rings: evidence for persistent currents [J]. Phys. Rev. Lett.,1990, 64: 2074.
[3]	Chandrasekhar V, et al. Magnetic response of a single, isolated gold loop [J]. Phys. Rev. Lett., 1991, 67: 3578.
[4]	Li Y Q, Chen B. Quantum theory for mesoscopic electric circuits [J]. Phys. Rev. B, 1996, 53: 4027.
[5]	Wang J S, Liu T K, Zhan M S. Coulomb blockade and quantum fluctuations of mesoscopic inductance coupling circuit [J]. Phys. Lett. A, 2000, 276: 155.
[6]	Ji Yinghua, Rao Jianping, Lei Minsheng. Quantum tunneling effect in the mesoscopic LC circuit [J]. Acta Physica Sinica (物理学报), 2002, 51:395 (in Chinese).
[7]	Ji Y H, Lei M S, Ouyang C Y. Time dependence of the average charge and current in a dissipative mesoscopic circuit [J]. Chinese Physics, 2002, 11: 163.
[8]	Fan H Y, Liang X T. Quantum fluctuation in thermal vacuum state for mesoscopic LC electric circuit [J]. Chin.Phys. Lett., 2001, 10: 486.
[9]	Ji Yinghua, Lei Minsheng. Quantum effects in mesoscopic capacitor coupled circuits of three meshes [J]. Chinese Journal of Quantum Electronics (量子电子学报), 2002, 19:48 (in Chinese).
[10]	Liang Mailin, Yuan Bing. On the quantization of the RLC electric circuit with a source and the quantum fluctuations [J]. Chinese Journal of Quantum Electronics (量子电子学报), 2002, 19:53 (in Chinese).
[11]	Long Chaoyun, Wang Xinfu, Li Houqing. Quantum fluctuation of mesoscopic LC circuit [J]. Chinese Journal of Quantum Electronics (量子电子学报), 2002, 19:131 (in Chinese).
[12]	Flores J C, et al. Mesoscopic circuits with charge discreteness: quantum current magnification for mutual inductances [J]. Phys. Rev. B, 2002, 66: 153410.
[13]	Fan H Y, Fan Y, Song T Q. Quantum theory of mesoscopic electric circuits in entangled state representation [J].Phys. Lett. A, 2002, 305: 222.

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介观耦合金属环中的持续电流

Persistent currents in mesoscopic coupling metallic ring

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