arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 0704.3291cond-mat.mes-hallcond-mat.str-el
收藏

k=3 Read-Rezayi态中的双点接触

Double Point Contact in the k=3 Read-Rezayi State

Lukasz Fidkowski

摘要:

我们计算了在k=3的Read-Rezayi态(这是用来描述一个不可压缩的量子霍尔流体在填充分数nu=12/5)的双点接触中的隧穿电流对电压,两个接触之间的分离,和温度的依赖关系。使用的隧道哈密顿的cond-mat/0607431,我们表明,在两个接触之间的体区域中的准空穴的效果是简单的总常数乘以干涉项。这与cond-mat/0601242中的微分电导率相同;不同之处在于,我们进行了实际的边缘理论计算,并计算了弱隧穿时的完整电流-电压曲线。

英文摘要:

We compute the dependence of the tunneling current in a double point contact in the k=3 Read-Rezayi state (which is conjectured to describe an incompressible quantum hall fluid at filling fraction nu=12/5) on voltage, separation between the two contacts, and temperature. Using the tunneling hamiltonian of cond-mat/0607431, we show that the effect of quasiholes in the bulk region between the two contacts is simply an overall constant multiplying the interference term. This is the same effect as found for the differential conductivity in cond-mat/0601242; the difference is that we do an actual edge theory calculation and compute the full current-voltage curve at weak tunneling.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑