Abstract
Hybrid superconducting circuits, which integrate nonsuperconducting elements into a circuit quantum electrodynamics (cQED) architecture, expand the possible applications of cQED. Building hybrid circuits that work in large magnetic fields presents even further possibilities, such as the probing of spin-polarized Andreev bound states and the investigation of topological superconductivity. Here we present a magnetic-field compatible hybrid fluxonium with an electrostatically tuned semiconducting nanowire as its nonlinear element. We operate the fluxonium in magnetic fields up to 1 T and use it to observe the phi(0)-Josephson effect. This combination of gate tunability and field compatibility opens avenues for the control of spin-polarized phenomena using superconducting circuits and enables the use of the fluxonium as a readout device for topological qubits.
Original language | English |
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Article number | 064038 |
Journal | Physical Review Applied |
Volume | 14 |
Issue number | 6 |
Number of pages | 12 |
ISSN | 2331-7019 |
DOIs | |
Publication status | Published - 14 Dec 2020 |
Keywords
- STATES