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Scaling of a Single Impurity Potential of Arbitrary Strength in a Tomonaga-Luttinger Liquid

机译:汤姆加液液中任意强度的单一杂质电位的缩放

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We study scaling of a single impurity potential in a Tomonaga-Luttinger (TL) liquid for arbitrary impurity strength. Boson representation for the electron field operator including a phase shift by the impurity scattering is introduced, and used to calculate the temperature dependence of the local spectral density. The fixed line of an impurity potential is determined for TL liquid with spin dependent interactions (K_(s)(not=)1), extending the results for weak and strong impurity limits to intermediate strength.
机译:我们研究汤汤液(TL)液中的单一杂质电位的缩放,以进行任意杂质强度。引入包括杂质散射的相移的电子场操作员的培训型表示,并用于计算局部光谱密度的温度依赖性。对于具有自旋依赖性相互作用的T1液体(K_(S)(NOT =)1)确定固定线,将弱和强杂质限制的结果延伸到中间强度。

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