Highly Efficient Superconducting Diodes and Rectifiers for Quantum Circuitry

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Highly Efficient Superconducting Diodes and Rectifiers for Quantum Circuitry
Josep Ingla-Aynés, Yasen Hou, Sarah Wang, En-De Chu, Oleg A. Mukhanov, Peng Wei, Jagadeesh S. Moodera, 2025, "Highly Efficient Superconducting Diodes and Rectifiers for Quantum Circuitry", https://doi.org/10.7910/DVN/BSAD8L, Harvard Dataverse, V7
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Description
Superconducting electronics is essential for energy-efficient quantum and classical high-end computing applications. Towards this goal, non-reciprocal superconducting circuit elements, such as superconducting diodes (SDs) can fulfill many critical needs. SDs have been the subject of multiple studies, but integrating several SDs in a superconducting circuit remains a challenge. Here we implement the first SD bridge with multiple SDs exhibiting reproducible characteristics operating at temperatures of a few Kelvin. We demonstrate its functionality as a full wave rectifier using elemental superconductors and insulating ferromagnets, with efficiency up to 42±5%, and ac to dc signal conversion capabilities at frequencies up to 40 kHz. Our results show a pathway with a highly scalable thin film platform for nonreciprocal superconducting circuits. They could significantly reduce energy consumption as well as decohering thermal and electromagnetic noise in quantum computing.
Subject Physics
Keyword nonreciprocal superconductivity, superconducting applications, superconducting circuit, superconducting diode, superconducting electronics
Notes PSFC REPORT PSFC/JA-24-97

This work was supported by Air Force Office of Sponsored Research (FA9550-23-1- 0004 DEF), Office of Naval Research (N00014-20-1-2306), National Science Foundation (NSF-DMR 2218550 and 1231319); Army Research Office (W911NF-20-2-0061, DURIP W911NF-20-1-0074). EC and PW acknowledge the NSF CAREER DMR-2046648. This work was carried out in part through the use of MIT.nano’s facilities.

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