Coulomb blockade with neutral modes.
Coulomb blockade with neutral modes.
复制标题
具有中性模式的库仑封锁
DOI：
10.1103/physrevlett.114.156401
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发表时间：
2015
影响因子：
8.6
通讯作者：
Yuval Gefen
中科院分区：
文献类型：
--
作者：
Alex Kamenev;Yuval Gefen
我们研究了在分数量子霍尔机制下，在填充因子和弱耦合的情况下，量子点的输运。我们解释了电子注入或从引线，和准粒子重排过程之间的边缘和大部分的量子点。中性模式的存在引入了拓扑约束，其定性地修改库仑阻塞（CB）的特征。CB峰间距的周期性加倍，相邻峰之间的间距比接近（在低温和大点极限下）一个普适值：for和for。对应的CB菱形在偏置电压的方向上交替其宽度，并且允许确定中性模式速度以及与之相关联的拓扑数。
We study transport through a quantum dot in the fractional quantum Hall regime with filling factorsand, weakly coupled to the leads. We account for both injection of electrons to or from the leads, and quasiparticle rearrangement processes between the edge and the bulk of the quantum dot. The presence of neutral modes introduces topological constraints that modify qualitatively the features of the Coulomb blockade (CB). The periodicity of CB peak spacings doubles and the ratio of spacing between adjacent peaks approaches (in the low temperature and large dot limit) a universal value:forandfor. The corresponding CB diamonds alternate their width in the direction of the bias voltage and allow for the determination of the neutral mode velocity, and of the topological numbers associated with it.
DOI：
10.1136/ebmh.11.4.102
发表时间：
2008-10
期刊：
Evidence Based Mental Health
影响因子：
--
作者：
P. Cochat;L. Vaucoret;J. Sarles
通讯作者：
P. Cochat;L. Vaucoret;J. Sarles