Impurity Scattering in Luttinger Liquid with Electron-Phonon Coupling

Impurity Scattering in Luttinger Liquid with Electron-Phonon Coupling
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电子声子耦合路廷格液体中的杂质散射

DOI:
10.1088/1742-6596/286/1/012049
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发表时间:
2010
期刊:
Journal of Physics: Conference Series
影响因子:
--
通讯作者:
I. Lerner
I. Lerner
中科院分区:
--
文献类型:
--
作者:
A. Galda;I. Yurkevich;I. Lerner

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我们研究了电子声子耦合对通过嵌入弱散射体或弱连接的路廷格液体的电子传输的影响。我们推导了重正化群(RG)方程,该方程表明 RG 流的方向可以随着电子-电子和电子-声子耦合的相对强度或费米与声速之比的变化而改变。这会产生最多具有三个固定点的丰富相图:一个具有有限电导值的不稳定点和两个对应于理想金属或绝缘体的稳定点。
We study the influence of electron-phonon coupling on electron transport through a Luttinger liquid with an embedded weak scatterer or weak link. We derive the renormalization group (RG) equations which indicate that the directions of RG flows can change upon varying either the relative strength of the electron-electron and electron-phonon coupling or the ratio of Fermi to sound velocities. This results in the rich phase diagram with up to three fixed points: an unstable one with a finite value of conductance and two stable ones, corresponding to an ideal metal or insulator.
DOI: 10.1103/physrevlett.100.256805
发表时间: 2007-11
影响因子: 8.6
作者:
I. Lerner;V. Yudson;I. Yurkevich
通讯作者: I. Lerner;V. Yudson;I. Yurkevich