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Regensburg 2019 – wissenschaftliches Programm

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TT: Fachverband Tiefe Temperaturen

TT 46: Quantum Dots, Quantum Wires, Point Contacts

TT 46.3: Vortrag

Mittwoch, 3. April 2019, 15:30–15:45, H22

Phase-dependent heat and charge transport through superconductor-quantum dot hybrids. — •Mathias Kamp and Björn Sothmann — Theoretische Physik, Universität Duisburg-Essen and CENIDE, D-47048 Duisburg, Germany

In the context of modern electronics, it becomes increasingly important to understand and control heat transport in nanostructures. So far, there has been a great activity on phase-coherent heat transport in superconducting tunnel junctions. Here, we consider heat transport through superconductor-quantum dot hybrids [1]. We evaluate heat and charge currents via a real-time diagrammatic technique which allows us to treat strong Coulomb interactions in a nonequilibrium system. We find a finite thermoelectric effect due to the proximity effect which surprisingly persist even at the particle-hole symmetric point. Furthermore the system can act as an efficient thermal diode.
M. Kamp, B. Sothmann, arXiv 1809.09428 (2018)

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