Disorder enhanced transport as a general feature of long-range hopping models

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Authors: Elisa Zanardini, G. L. Celardo, Nahum C. Chávez, F. Borgonovi
Cited by: 0

Abstract

We analyze the interplay of disorder and long-range hopping in a paradigmatic one dimensional model of quantum transport. While typically the current is expected to decrease as the disorder strength increases due to localization effects, in systems with infinite range hopping it was shown in Chavez et al, Phys. Rev. Lett. 126, 153201 (2021), that the current can increase with disorder in the Disorder-Enhanced-Transport (DET) regime. Here, by analyzing models with variable hopping range decaying as $1/r^α$ with the distance $r$ among the sites, we show that the DET regime is a general feature of long-range hopping systems and it occurs, not only in the strong long-range limit $α

Fields of Study & Subjects

Quantum and electron transport phenomena Quantum many-body systems Spectral Theory in Mathematical Physics

Publication details

Journal / source
arXiv (Cornell University)
Publication date
12 January 2026
Document type
Preprint