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

Yuval Weiss; Moshe Goldstein; Richard Berkovits

doi:10.1103/physrevb.76.024204

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arXiv · 0704.1386

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

Yuval Weiss·Moshe Goldstein·Richard Berkovits

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Abstract

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.

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Yuval Weiss, Moshe Goldstein, Richard Berkovits. 2007-04-11. Disorder effect on the Friedel oscillations in a one-dimensional Mott insulator. https://doi.org/10.1103/physrevb.76.024204

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