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TT: Fachverband Tiefe Temperaturen

TT 73: Superconducting Electronics: Qubits II (joint session TT/QI)

TT 73.2: Talk

Thursday, March 21, 2024, 15:15–15:30, H 2053

Generating on-chip ac radiation for high impedance electronics — •David Scheer and Fabian Hassler — Institute for Quantum Information, RWTH Aachen University, 52056 Aachen, Germany

Superconducting circuits with high impedances have promising applications in qubit design and quantum metrology. It is however difficult to supply external ac signals to a high impedance environment due to impedance mismatching and parasitic capacitances. The ac Josephson effect can provide a solution to this problem since it generates oscillating currents from an external dc bias. Here we present the use of Josephson junctions as an on chip radiation source as a way to avoid external driving of high impedance circuits.

Keywords: Josephson Junctions; High impedance; Synchronization