Synthetic helical liquid in a quantum wire

被引:11
|
作者
Japaridze, George I. [1 ,2 ]
Johannesson, Henrik [3 ]
Malard, Mariana [4 ]
机构
[1] Andronikashvili Inst Phys, GE-0177 Tbilisi, Georgia
[2] Ilia State Univ, GE-0162 Tbilisi, Georgia
[3] Univ Gothenburg, Dept Phys, SE-41296 Gothenburg, Sweden
[4] Univ Brasilia, Fac UnB Planaltina, BR-73300000 Planaltina, DF, Brazil
基金
瑞典研究理事会; 瑞士国家科学基金会;
关键词
SINE-GORDON MODEL; NEUTRINOS; TRANSPORT; ABSENCE; LATTICE;
D O I
10.1103/PhysRevB.89.201403
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
We show that the combination of a Dresselhaus interaction and a spatially periodic Rashba interaction leads to the formation of a helical liquid in a quantum wire when the electron-electron interaction is weakly screened. The effect is sustained by a helicity-dependent effective band gap which depends on the size of the Dresselhaus and Rashba spin-orbit couplings. We propose a design for a semiconductor device in which the helical liquid can be realized and probed experimentally.
引用
收藏
页数:5
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