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arXiv · 2405.14603

The role of excitation vector fields and all-polarisation state control of cavity magnonics

Alban Joseph·Jayakrishnan M. P. Nair·Mawgan A. Smith·Rory Holland·Luke J. McLellan·Isabella Boventer·Tim Wolz·Dmytro A. Bozhko·Benedetta Flebus·Martin P. Weides·Rair Macedo
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Abstract

Recently the field of cavity magnonics, a field focused on controlling the interaction between magnons and confined microwave photons within microwave resonators, has drawn significant attention as it offers a platform for enabling advancements in quantum- and spin-based technologies. Here, we introduce excitation vector fields, whose polarisation and profile can be easily tuned in a two-port cavity setup, thus acting as an effective experimental knob to explore the coupled dynamics of cavity magnon-polaritons. Moreover, we develop theoretical models that accurately predict and reproduce the experimental results for any polarisation state and field profile within the cavity resonator. This versatile experimental platform offers a new avenue for controlling spin-photon interactions and as such also delivering a mechanism to readily control the exchange of information between hybrid systems.

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Alban Joseph, Jayakrishnan M. P. Nair, Mawgan A. Smith, Rory Holland, Luke J. McLellan, Isabella Boventer, Tim Wolz, Dmytro A. Bozhko, Benedetta Flebus, Martin P. Weides, Rair Macedo. 2024-05-23. The role of excitation vector fields and all-polarisation state control of cavity magnonics. https://arxiv.org/abs/2405.14603

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