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Long-lived circulating currents in strongly correlated nanorings

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DOI to cite this document:
Schoenauer, B. M. ; Gergs, N. M. ; Schmitteckert, P. ; Evers, Ferdinand ; Schuricht, D.
License: Creative Commons Attribution 4.0
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Date of publication of this fulltext: 25 May 2021 13:47


We study the time-evolving currents flowing in an interacting ring-shaped nanostructure after a bias voltage has been switched on. The source-to-drain current exhibits the expected relaxation towards its quasistatic equilibrium value at a rate Γ0 reflecting the lead-induced broadening of the ring states. In contrast, the current circulating within the ring decays with a different rate Γ, which is ...


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