Frequency-domain spin-wave logic gate based on three-magnon confluence
Abstract
Spin-wave-based information processing provides a promising platform for low-power nanoscale computing by exploiting coherent magnon dynamics and intrinsic nonlinear interactions. A key advantage of wave-based processing for efficient miniaturization is the ability to perform operations in the frequency domain without requiring separate propagation paths for the input and output signals. Here, we demonstrate a frequency-domain spin-wave logic gate based on resonant, non-degenerate three-magnon confluence in an yttrium iron garnet nanowaveguide. Under resonant conditions, two input spin waves at different frequencies efficiently generate an output spin wave at the sum frequency, which occurs only when both input signals are present, thereby directly implementing an AND logic operation. We further show that the output intensity scales linearly with each input intensity and is therefore proportional to their product, enabling analog multiplication of two signals. These results demonstrate nonlinear magnon confluence as a versatile mechanism for frequency-domain spin-wave logic and analog signal processing.
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BibTeX
@misc{bessonov2026frequencydomain,
title = {{Frequency-domain spin-wave logic gate based on three-magnon confluence}},
author = {Vladimir D. Bessonov and Stephanie R. Lake and Bikash Das Mohapatra and Jannis Bensmann and Georg Schmidt and Rudolf Bratschitsch and Sergej O. Demokritov and Vladislav E. Demidov},
howpublished = {arXiv},
year = {2026},
month = nov,
doi = {10.48550/arxiv.2611.02946},
eprint = {2611.02946},
archivePrefix = {arXiv},
url = {https://arxiv.org/abs/2611.02946},
note = {CC BY 4.0},
}
RIS
TY - UNPB
TI - Frequency-domain spin-wave logic gate based on three-magnon confluence
AU - Vladimir D. Bessonov
AU - Stephanie R. Lake
AU - Bikash Das Mohapatra
AU - Jannis Bensmann
AU - Georg Schmidt
AU - Rudolf Bratschitsch
AU - Sergej O. Demokritov
AU - Vladislav E. Demidov
PY - 2026
DA - 2026/11/02
PB - arXiv
DO - 10.48550/arxiv.2611.02946
UR - https://arxiv.org/abs/2611.02946
AB - Spin-wave-based information processing provides a promising platform for low-power nanoscale computing by exploiting coherent magnon dynamics and intrinsic nonlinear interactions. A key advantage of wave-based processing for efficient miniaturization is the ability to perform operations in the frequency domain without requiring separate propagation paths for the input and output signals. Here, we demonstrate a frequency-domain spin-wave logic gate based on resonant, non-degenerate three-magnon confluence in an yttrium iron garnet nanowaveguide. Under resonant conditions, two input spin waves at different frequencies efficiently generate an output spin wave at the sum frequency, which occurs only when both input signals are present, thereby directly implementing an AND logic operation. We further show that the output intensity scales linearly with each input intensity and is therefore proportional to their product, enabling analog multiplication of two signals. These results demonstrate nonlinear magnon confluence as a versatile mechanism for frequency-domain spin-wave logic and analog signal processing.
ER -