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arXiv 1805.03571cond-mat.str-el
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均匀电子气的破缺标度不变性沃德恒等式

Broke Scale Invariance Ward Identities for the Homogeneous Electron Gas

Tom Banks

摘要:

我们推导出精确的方程的均匀电子气HEG的破缺标度不变性,并表明,它们导致一个封闭的非线性积分方程的密度-密度关联函数时,评估的领先阶的1/N展开。更一般地,该恒等式导致一系列更精细的方程组,其接近有限数量的一个等离子体激元不可约(1 PLI)关联函数。

英文摘要:

We derive exact equations for a broken scale invariance of the homogeneous electron gas HEG, and show that they lead to a closed non-linear integral equation for the density- density correlation function when evaluated to leading order in the 1/N expansion. More generally, the identity leads to a sequence of more refined systems of equations, which close on a finite number of one plasmon irreducible (1PLI) correlation functions.

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