Kinetic-inductance Parametric Amplification in Superconducting Hybrid Magnonics
Abstract
Parametric amplification enables sensitive microwave detection and signal processing by amplifying weak signals with minimal added noise. Here, we demonstrate kinetic inductance mediated parametric amplification in a hybrid magnonic system comprising a nonlinear NbN nanowire resonator strongly coupled to a yttrium iron garnet sphere. The resonator exhibits four wave mixing and nonlinear frequency pulling, enabling parametric amplification both away from and within the magnon-photon strong coupling regime. In the magnon detuned regime, we observe 7 dB gain, while coupling to the YIG magnon shifts the parametric amplification response by ~20 MHz and yields 3.4 dB gain in the hybrid mode. Thus, magnon photon coupling provides a route to magnetically tune the spectral position of kinetic inductance parametric amplification. At higher pump powers, the system transitions to a self oscillatory regime featuring comb-like sidebands and probe activated nonlinear mode mixing. These results establish hybrid magnonics as a platform for tunable nonlinear microwave amplification and dynamics.
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BibTeX
@misc{pal2026kineticinductance,
title = {{Kinetic-inductance Parametric Amplification in Superconducting Hybrid Magnonics}},
author = {Pratap Kumar Pal and Moojune Song and Jinho Lim and Juliang Li and Serhii Kruhlov and Ralu Divan and Ulrich Welp and Clarence Chang and Kab-Jin Kim and Valentine Novosad and Axel Hoffmann and Yi Li},
howpublished = {arXiv},
year = {2026},
month = oct,
doi = {10.48550/arxiv.2610.30322},
eprint = {2610.30322},
archivePrefix = {arXiv},
url = {https://arxiv.org/abs/2610.30322},
note = {CC BY 4.0},
}
RIS
TY - UNPB
TI - Kinetic-inductance Parametric Amplification in Superconducting Hybrid Magnonics
AU - Pratap Kumar Pal
AU - Moojune Song
AU - Jinho Lim
AU - Juliang Li
AU - Serhii Kruhlov
AU - Ralu Divan
AU - Ulrich Welp
AU - Clarence Chang
AU - Kab-Jin Kim
AU - Valentine Novosad
AU - Axel Hoffmann
AU - Yi Li
PY - 2026
DA - 2026/10/21
PB - arXiv
DO - 10.48550/arxiv.2610.30322
UR - https://arxiv.org/abs/2610.30322
AB - Parametric amplification enables sensitive microwave detection and signal processing by amplifying weak signals with minimal added noise. Here, we demonstrate kinetic inductance mediated parametric amplification in a hybrid magnonic system comprising a nonlinear NbN nanowire resonator strongly coupled to a yttrium iron garnet sphere. The resonator exhibits four wave mixing and nonlinear frequency pulling, enabling parametric amplification both away from and within the magnon-photon strong coupling regime. In the magnon detuned regime, we observe 7 dB gain, while coupling to the YIG magnon shifts the parametric amplification response by ~20 MHz and yields 3.4 dB gain in the hybrid mode. Thus, magnon photon coupling provides a route to magnetically tune the spectral position of kinetic inductance parametric amplification. At higher pump powers, the system transitions to a self oscillatory regime featuring comb-like sidebands and probe activated nonlinear mode mixing. These results establish hybrid magnonics as a platform for tunable nonlinear microwave amplification and dynamics.
ER -