Nonvolatile cryogenic phase-slip memory with single-shot readout
Journal article, 2025
The demand for cryogenic memory components is driven by the need for ultrafast, low-power, and highly reliable computing systems. Phase-slip-based devices promise to fulfill all these requirements, with potential applications in both classical and quantum information processing. However, previous implementations have faced challenges due to inefficient writing and readout schemes. In this work, we address these limitations with a simple device design and measurement techniques inspired by circuit quantum electrodynamics. We present a memory element that stores information in the winding of a high-kinetic inductance superconducting loop, inductively coupled to a coplanar waveguide resonator. Using 2-μs single-shot measurements, we bring the resonator to the steady state and achieve a readout fidelity of 99.698% with an active measurement time of just 25 ns.
Phase slips
Nanostructures
Superconducting devices
Circuit quantum electrodynamics
Weak links
Quantum information processing
Microwave techniques
Devices for digital logic, storage & processing
Author
Lukas Nulens
KU Leuven
Davi A.D. Chaves
KU Leuven
Stijn Reniers
KU Leuven
Ruben Dillemans
KU Leuven
Ivo Cools
Chalmers, Microtechnology and Nanoscience (MC2), Quantum Device Physics
Kristiaan Temst
KU Leuven
Interuniversity Micro-Electronics Center at Leuven
Bart Raes
Interuniversity Micro-Electronics Center at Leuven
Margriet J. Van Bael
KU Leuven
J. de Vondel
KU Leuven
Physical Review Applied
2331-7019 (eISSN)
Vol. 24 5 054019Subject Categories (SSIF 2025)
Other Electrical Engineering, Electronic Engineering, Information Engineering
Other Physics Topics
DOI
10.1103/wrvj-5737