用Weyl-Wigner理论研究有限温度下介观电路的量子特性  

Study on Quantum Properties of Mesoscopic Circuit at Finite Temperature by virtue of the Weyl-Wigner Theorem

作　　者：张晓燕[1] 

机构地区：[1]菏泽学院物理系,山东菏泽274015

出　　处：《量子光学学报》2012年第4期389-392,共4页Journal of Quantum Optics

基　　金：国家自然科学基金(10574060);山东省自然科学基金(Y2008A16;ZR2010AQ024;ZR2010AQ027);菏泽学院科研基金(XYJJKJ-1)

摘　　要：利用相干热态表象理论,研究有限温度下RLC电路的Wigner函数及量子涨落。借助于Weyl-Wigner理论讨论了介观RLC电路Wigner函数的边缘分布。结果表明:Wigner函数边缘分布的统计平均正好是储存在介观RLC电路中电容和电感上的能量。According to the theory of the thermo state, we studied the Wigner function and quantum fluctuations of mesoscopic RLC circuit. By means of the Weyl-Wigner theorem, we discussed the marginaldistribution of Wigner function in mesoscopic RLC circuit. The results show that their marginal distributionsr statistical averages are the energy stored in capacity and in inductance of the mesoscopic RLCcircuit respectively.

关 键 词：量子光学 Weyl-Wigner理论 WIGNER函数 边缘分布 

分 类 号：O431[机械工程—光学工程]