论文标题

充电近多电路作为Luttinger液体中电子电子相互作用的检测器

Charge Kondo circuit as a detector for electron-electron interactions in a Luttinger Liquid

论文作者

Nguyen, T. K. T., Parafilo, A. V., Nguyen, H. Q., Kiselev, M. N.

论文摘要

我们研究了电子电子相互作用对量子传输的影响。该设置由两个近乎透明的单模式量子点触点夹在两个引线之间的量子点组成。与量子点$ a $相比,假定在狭窄约束的囊肿中形成的相互作用面积$ l $的大小被认为小得多。我们预测,在Luttinger液体中的电子 - 电子相互作用与两个通道近通道中间耦合固定点附近的非Fermi液体行为的指纹之间的相互作用使一个人可以通过电力尺度的电力范围温度来确定相互作用强度。

We investigate the effects of the electron-electron interactions on the quantum transport through a charge Kondo circuit. The setup consists of a quantum dot sandwiched between two leads by two nearly transparent single mode quantum point contacts. The size of the interacting area $L$ in the Luttinger liquid formed in the vicinities of the narrow constrictions is assumed to be much smaller compared to the size of the quantum dot $a$. We predict that the interplay between the electron-electron interactions in the Luttinger liquid and the fingerprints of the non-Fermi liquid behavior in the vicinity of the two channel Kondo intermediate coupling fixed point allows one to determine the interaction strength through the power-law temperature scaling of the electric conductance.

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