Connecting the SYK dots
Strongly Correlated Electrons
2020-06-03 v2 Mesoscale and Nanoscale Physics
High Energy Physics - Theory
Abstract
We study a putative (strange) metal-to-insulator transition in a granular array of the Sachdev-Ye-Kitaev (SYK) quantum dots, each occupied by a large number N>>1 of charge-carrying fermions. Extending the previous studies we complement the SYK couplings by the physically relevant Coulomb interactions and focus on the effects of charge fluctuations, evaluating the conductivity and density of states. The latter were found to demonstrate marked changes of behavior when the effective inter-site tunneling becomes comparable to the renormalized Coulomb energy, thus signifying the transition in question.
Cite
@article{arxiv.2004.06646,
title = {Connecting the SYK dots},
author = {D. V. Khveshchenko},
journal= {arXiv preprint arXiv:2004.06646},
year = {2020}
}
Comments
Latex, 6+ pages, no figures