Regensburg 2019 – scientific programme
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TT: Fachverband Tiefe Temperaturen
TT 58: Superconductivity: Qubits 2
TT 58.4: Talk
Thursday, April 4, 2019, 15:45–16:00, Theater
Thermal Engineering for Superconducting Microwave Circuits — •Matti Partanen1,2, Jan Goetz1, Kuan Yen Tan1, Shumpei Masuda1, Russell E. Lake1,3, Joonas Govenius1, Matti Silveri1,4, Máté Jenei1, Kassius Kohvakka1, Vasilii Sevriuk1, Roope Kokkoniemi1, Joni Ikonen1, Dibyendu Hazra1, Eric Hyyppä1, Leif Grönberg5, Juha Hassel5, Slawomir Simbierowicz5, Visa Vesterinen1,5, Jani Tuorila1,4,6, Tapio Ala-Nissila6,7,8, and Mikko Möttönen1 — 1QCD Labs, Aalto University, Finland — 2Walther-Meißner-Institut, Bayerische Akademie der Wissenschaften, Germany — 3National Institute of Standards and Technology, Boulder, Colorado, USA — 4Research Unit of Nano and Molecular Systems, University of Oulu, Finland — 5VTT Technical Research Centre of Finland Ltd, Finland — 6MSP group, Aalto University, Finland — 7Departments of Mathematical Sciences and Physics, Loughborough University, United Kingdom — 8Department of Physics, Brown University, Providence, Rhode Island, USA
Circuit quantum electrodynamics is a versatile architecture for various experiments in fundamental physics, as well as for different applications. Since excess heat is a substantial source of errors in cryogenic devices, it is of vital importance to evacuate heat. Here, we present our experimental results on optimized energy transfer between two resonators, and discuss photon absorption and emission techniques. We utilize photon-assisted electron tunneling through hybrid tunnel junctions coupled to resonators, and a heat sink based on a resistor in a flux-tunable resonator.