| 有互感和电源的介观耦合电路的量子涨落 |
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| 引用本文： | 马晓萍,朴红光,张寿.有互感和电源的介观耦合电路的量子涨落[J].量子光学学报,2007,13(2):151-156. |
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| 作者姓名： | 马晓萍 朴红光 张寿 |
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| 作者单位： | 淮海工学院数理系,江苏连,云港,222005;延边大学理工学院物理系,吉林,延吉,133002 |
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| 摘 要： | 通过正则变换和幺正变换的方法研究了有互感和电源存在的情况下的介观电容耦合电路的量子涨落.结果表明电荷和电流的量子涨落与电源无关;互感的有无对涨落的影响很大;适当选取回路中电器件的参数,可以控制耦合系数K对涨落的影响.并且,每个回路中电荷和电流的量子涨落是相互制约的.
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| 关 键 词： | 介观电路 正则变换 幺正变换 耦合 量子涨落 |
| 文章编号： | 1007-6654（2007）02-0151-06 |
| 收稿时间： | 2005-06-03 |
| 修稿时间： | 2005-06-03 |
Quantum Fluctuations in Mesoscopic Coupled Circuit with Mutual Inductance and Power Source |
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| MA Xiao-ping,PIAO Hong-guang,ZHAGNG Shou.Quantum Fluctuations in Mesoscopic Coupled Circuit with Mutual Inductance and Power Source[J].Acta Sinica Quantum Optica,2007,13(2):151-156. |
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| Authors: | MA Xiao-ping PIAO Hong-guang ZHAGNG Shou |
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| Institution: | 1. Department of Mathematics and Science, Huaihai Institute of Technology, Lianyungang, Jiangsu Proe., 222005, China; 2. Department of Physics, College of Science Engineering, Yanbian University, Yanji, Jilin Prov., 133002, China |
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| Abstract: | The quantum fluctuations of charges and currents in mesoscopic capacitance coupled circuit with mutual inducance and power source are investigated by using canonical transformation and unitary transformation. The results show that the quantum fluctuations of charges and currents are independent of power source. It makes a great impact on quantum fluctuations whether mutual inductance exists or not. Furthermore, the fact that the impact is great or not also depends on the components of the circuit. The quantum fluctuations of charge and its conjugate current of every loop mutually restrict. |
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| Keywords: | mesoscopic circuit canonical transformation unitary transformation mutual inductance quantum fluctuation |
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