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arXiv 0708.0003cond-mat.str-el
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一维量子线:玻色化的一种普通方法

One-dimensional quantum wires: A pedestrian approach to bosonization

Sebastian Eggert

摘要:

在这些课堂讲稿中,我们将考虑电子运动被限制在一维(1D)的系统。在这些所谓的量子线中,电子-电子相互作用效应起着重要的作用,因为受限的尺寸增强了电子之间的散射,并完全破坏了准粒子图像。新的密度波激发出现玻色子算子描述。在这里,我们将发展这种玻色子的描述,以下行人的方法,不需要任何以前的知识,在场论方法。因此,这些笔记通过仔细推导最基本的公式来详细介绍玻色化。

英文摘要:

In these lecture notes we will consider systems in which the motion of electrons is confined to one dimension (1D). In these so-called quantum wires electron-electron interaction effects play an important role because the restricted dimensions enhance the scattering between the electrons and completely destroy the quasi-particle picture. New density wave excitations appear that are described by bosonic operators. Here, we will develop this bosonic description, following a pedestrian approach which does not require any previous knowledge in field theory methods. These notes therefore serve as a detailed introduction into bosonization by carefully deriving the most fundamental formulas.

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