arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 0704.1386cond-mat.mes-hallcond-mat.dis-nncond-mat.str-el
收藏

无序对一维莫特绝缘体中Friedel振荡的影响

Disorder effect on the Friedel oscillations in a one-dimensional Mott insulator

Yuval Weiss, Moshe Goldstein, Richard Berkovits

摘要:

本文用DMRG方法数值计算了莫特绝缘体中一维无序导线的一边与量子点耦合时产生的Friedel振荡。通过研究无序对Friedel振荡衰减的影响,我们发现无序的影响随着相互作用强度的增加而减小。这种行为是相反的,最近报道的影响,在安德森绝缘体制度,无序导致更强的衰减的弗里德尔振荡。

英文摘要:

The Friedel oscillations resulting from coupling a quantum dot to one edge of a disordered one-dimensional wire in the Mott insulator regime, are calculated numerically using the DMRG method. By investigating the influence of the disorder on the Friedel oscillations decay we find that the effect of disorder is reduced by increasing the interaction strength. This behavior is opposite to the recently reported influence of disorder in the Anderson insulator regime, where disorder led to a stronger decay of the Friedel oscillations.

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。

↑