| 用重整化群流方程研究重费密子系统的重整杂化带模型 |
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| 引用本文： | 刘小妹,娄平.用重整化群流方程研究重费密子系统的重整杂化带模型[J].安徽大学学报(自然科学版),2008,32(5). |
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| 作者姓名： | 刘小妹 娄平 |
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| 作者单位： | 1. 安徽大学,物理与材料科学学院,安徽,合肥,230039;江苏科技大学,数理学院,江苏,镇江,212003
2. 安徽大学,物理与材料科学学院,安徽,合肥,230039 |
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| 摘 要： | 重整化群流方程方法是一种非常有用的理论研究工具,它可以用于各种物理系统中,求取系统的能谱和期望值,由此获得系统的一些属性.用该方法研究重费密子系统推广后的重整杂化带模型,求得相应的两支准粒子能带,这些结果与用常规的格林函数方法求得的结果完全一致.
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| 关 键 词： | 重整化群流方程 重费密子 幺正变换 生成函数 |
Flow equation's application in the renormalization-hybridization band model of the heavy fermion system |
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| LIU Xiao-mei,LOU Ping.Flow equation''''s application in the renormalization-hybridization band model of the heavy fermion system[J].Journal of Anhui University(Natural Sciences),2008,32(5). |
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| Authors: | LIU Xiao-mei LOU Ping |
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| Abstract: | The approach of renormalization group flow equation is a very useful tool in theoretical research.It can be applied to a variety of physical systems to find the systems' energy spectrums and expectation values.Therefore,some new properties of systems can be obtained.In the paper,we used the method to study the extended renormalized hybridization band model.Then,two quasi-particle energy spectrums and some expectation values were attained.The results were in accordance with those from the approach of Green function. |
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| Keywords: | renormalization group flow equation heavy fermion unitary transformation generator |
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