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Quantum Seminar: Tunable photonic heat transport across superconducting circuits

Date
Tuesday, August 27, 2019 14:00 - 15:00
Speaker
Jorden Senior (Aalto University, Finland)
Location
Heinzel Seminar Room / Office Bldg West (I21.EG.101)
Series
Seminar/Talk
Tags
Physical Sciences Seminar, quantum_seminar_ics
Host
Andrew Higginbotham
Contact

J. Senior, B. Karimia, A. Gubaydullina, A. Ronzania, Y.-C. Changa, J.T. Peltonena, C.D. Chena, and J.P. Pekolaa QTF Centre of Excellence, Department of Applied Physics, Aalto University School of Science, P.O. Box 13500, 00076 Aalto, Finland

By integrating the tools of ultra-sensitive microwave bolometry with those of superconducting circuits (qubits), we have experimentally realised tunable photonic heat transport between mesoscopic thermal baths embedded in superconducting resonators, interfaced with a superconducting artifcial atom.

We will present recent observations of heat transport in two scenarios:

- where the resonators are symmetric, highlighting the role of the various coupling elements and the applicability of local vs global models for understanding this flux-tunable transport(1)

- where the resonators are asymmetric, yielding a rectification based on the direction of transport(2)

(1) A.Ronzani et al, Tunable photonic heat transport in a quantum heat valve, Nat. Phys. 14, 1991?995 (2018).
(2) J.Senior et al, Thermal rectification via photon blockade in superconducting artificial atom, in preparation.
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