Isolators with superior performance to existing devices can be designed by combining nonlinear resonators.
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Krishnaswamy, H., Reiskarimian, N. & Nagulu, A. Coupled resonators give direction. Nat Electron 1, 94–95 (2018). https://doi.org/10.1038/s41928-018-0032-1
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DOI: https://doi.org/10.1038/s41928-018-0032-1
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