Excessive Noise as a Test for Many-Body Localization
Strongly Correlated Electrons
2019-01-30 v2
Abstract
Recent experimental reports suggested the existence of a finite-temperature insulator in the vicinity of the superconductor-insulator transition. The rapid decay of conductivity over a narrow temperature range was theoretically linked to both a finite-temperature transition to a many-body-localized state, and to a charge-Berezinskii Kosterlitz Thouless transition. Here we report of low-frequency noise measurements of such insulators to test for many body localization. We observed a huge enhancement of the low-temperatures noise when exceeding a threshold voltage for nonlinear conductivity and discuss our results in light of the theoretical models.
Cite
@article{arxiv.1806.09492,
title = {Excessive Noise as a Test for Many-Body Localization},
author = {I. Tamir and T. Levinson and F. Gorniaczyk and A. Doron and J. Lieb and D. Shahar},
journal= {arXiv preprint arXiv:1806.09492},
year = {2019}
}
Comments
5 pages, 4 figures