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Interplay of internal and external coupling phases in cavity magnonics: from level repulsion to attraction

arXiv
Authors: Guillaume Bourcin, Mufti Avicena, Vincent Vlaminck, Jeremy Bourhill, Vincent Castel

Year

2026

Paper ID

25778

Status

Preprint

Abstract Read

~2 min

Abstract Words

83

Citations

0

Abstract

We experimentally validate a unified input--output model that incorporates internal and external coupling phases in a room-temperature cavity magnonic system. By explicitly accounting for phase effects, the model provides full control of interference-induced antiresonances and enables a clear interpretation of the transition from level repulsion to level attraction. Nonreciprocal transmission - originating from internal phases - is accurately reproduced under specific coupling conditions. Quantitative agreement between experiments and simulations is obtained across all coupling regimes, demonstrating a practical route toward phase-controlled cavity--magnon devices.

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  • We experimentally validate a unified input--output model that incorporates internal and external coupling phases in a room-temperature cavity magnonic system.

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