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Open AccessArticle

Connecting the SYK Dots

Department of Physics and Astronomy, University of North Carolina, Chapel Hill, NC 27599, USA
Condens. Matter 2020, 5(2), 37; https://doi.org/10.3390/condmat5020037
Received: 21 April 2020 / Revised: 11 May 2020 / Accepted: 26 May 2020 / Published: 1 June 2020
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 became comparable to the renormalized Coulomb energy, thereby signifying the transition in question. View Full-Text
Keywords: granular system; metal-insulator transition; SYK model granular system; metal-insulator transition; SYK model
MDPI and ACS Style

Khveshchenko, D.V. Connecting the SYK Dots. Condens. Matter 2020, 5, 37.

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