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

Autor:	Weiss, Yuval, Goldstein, Moshe, Berkovits, Richard
Rok vydání:	2007
Předmět:	Condensed Matter - Mesoscale and Nanoscale Physics Condensed Matter - Disordered Systems and Neural Networks Condensed Matter - Strongly Correlated Electrons
Zdroj:	Phys. Rev. B 76, 24204 (2007)
Druh dokumentu:	Working Paper
DOI:	10.1103/PhysRevB.76.024204
Popis:	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. Comment: 5 pages, 5 figures
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/0704.1386 Zobrazit plný text záznamu View this record from Arxiv