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arXiv · 2103.04322

Broadband frequency filters with quantum dot chains

Tilmann Ehrlich·Gernot Schaller
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Abstract

Two-terminal electronic transport systems with a rectangular transmission can violate standard thermodynamic uncertainty relations. This is possible beyond the linear response regime and for parameters that are not accessible with rate equations obeying detailed-balance. Looser bounds originating from fluctuation theorem symmetries alone remain respected. We demonstrate that optimal finite-sized quantum dot chains can implement rectangular transmission functions with high accuracy and discuss the resulting violations of standard thermodynamic uncertainty relations as well as heat engine performance.

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Tilmann Ehrlich, Gernot Schaller. 2021-03-07. Broadband frequency filters with quantum dot chains. https://doi.org/10.1103/physrevb.104.045424

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