| 带有一个Stub的三臂环中的持续电流(英文) |
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| 引用本文： | 赵志云,许田,兰燕娜,周朋霞.带有一个Stub的三臂环中的持续电流(英文)[J].原子与分子物理学报,2010,27(4):765-768. |
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| 作者姓名： | 赵志云 许田 兰燕娜 周朋霞 |
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| 作者单位： | 南通大学理学院,南通,226007 |
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| 基金项目： | 南通大学科研启动基金资助 |
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| 摘 要： | 采用一维量子波导理论研究了带有一个Stub的三臂环中的透射系数和持续电流.探讨了透射系数和持续电流对环的尺寸和Stub长度的依赖关系.结果发现:当k_1取某一个固定值,满足kL=nπ时,系统出现反共振现象.而且适当地调节系统的参数,可以出现明显的Fano共振现象.
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| 关 键 词： | 量子波导理论 持续电流 介观结构 Fano共振 |
The persistent currents in a triple-arm ring with a stub |
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| ZHAO Zhi-Yun,XU Tian,LAN Yan-Na,ZHOU Peng-Xia.The persistent currents in a triple-arm ring with a stub[J].Journal of Atomic and Molecular Physics,2010,27(4):765-768. |
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| Authors: | ZHAO Zhi-Yun XU Tian LAN Yan-Na ZHOU Peng-Xia |
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| Abstract: | Based on quantum waveguide theory, the transmission coefficient and the persistent currents in a multi-arm ring with a stub are investigated theoretically. The numerical results examine the dependence of the transmission coefficient and the persistent currents on the size of the ring and the length of the stub. The studies show that the transmission become anti-resonant when equal to for some fixed value of . Also Fano resonance may appear if one chooses the systematic parameters reasonably. |
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| Keywords: | Quantum waveguide theory Persistent currents Mesoscopic structure Fano resonance |
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