Berlin 2018 – wissenschaftliches Programm
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TT: Fachverband Tiefe Temperaturen
TT 61: Superconductivity: Superconducting Electronics II and Cryotechnique
TT 61.1: Hauptvortrag
Mittwoch, 14. März 2018, 15:00–15:30, H 2053
Quantum Thermodynamics on Superconducting Qubits — •Jukka Pekola1, Bayan Karimi1, Alberto Ronzani1, Jorden Senior1, Yu-Cheng Chang1,2,3, ChiiDong Chen1,3, and Joonas Peltonen1 — 1Aalto University School of Science, Helsinki, Finland — 2National Taiwan University, Taipei, Taiwan, Republic of China — 3Academia Sinica, Taipei, Taiwan, Republic of China
I present quantum refrigerators based on superconducting qubits. In the theoretical part I describe a four-stroke Otto refrigerator, and a model of it in different operation regimes. Experiments on a transmon type qubit coupled to two resonators demonstrate heat transport, where the quantum-classical border is determined by the relative strength of qubit-resonator and resonator-heat bath couplings, respectively.