TRANSPORT THROUGH ASYMMETRIC TWO-LEAD JUNCTIONS OF LUTTINGER LIQUID WIRES

被引:0
|
作者
Aristov, D. N. [1 ,2 ,3 ]
Woelfle, P. [2 ,4 ,5 ]
机构
[1] Petersburg Nucl Phys Inst, Gatchina 188300, Russia
[2] Karlsruhe Inst Technol, Inst Nanotechnol, D-76021 Karlsruhe, Germany
[3] St Petersburg State Univ, Dept Phys, St Petersburg 198504, Russia
[4] Karlsruhe Inst Technol, Inst Condensed Matter Theory, D-76128 Karlsruhe, Germany
[5] Karlsruhe Inst Technol, Ctr Funct Nanostruct, D-76128 Karlsruhe, Germany
来源
LITHUANIAN JOURNAL OF PHYSICS | 2012年 / 52卷 / 02期
关键词
Luttinger liquid wires; quantum transport; conductance; renormalization group theory; DIMENSIONAL ELECTRON-GAS; NONEQUILIBRIUM TRANSPORT; SINGLE-BARRIER; CONTACTS;
D O I
暂无
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
We calculate the conductance of a system of two spinless Luttinger liquid wires with different interaction strengths g1, g2, connected through a short junction, within the scattering state formalism. Following earlier work we formulate the problem in current algebra language, and calculate the scale dependent contribution to the conductance in perturbation theory keeping the leading universal contributions to all orders in the interaction strength. From that we derive a renormalization group (RG) equation for the conductance. The analytical solution of the RG-equation is discussed in dependence on g1, g2. The regions of stability of the two fixed points corresponding to conductance G = 0 and G = 1, respectively, are determined.
引用
收藏
页码:89 / 95
页数:7
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