https://doi.org/10.1140/epjp/s13360-025-06745-8
Regular Article
Entanglement generation and transfer via photon hopping in a hybrid optomagnonic system
1
LPTHE, Department of Physics, Faculty of Sciences, Ibn Zohr University, 80000, Agadir, Morocco
2
Department of Applied Physics, Adama Science and Technology University, 1888, Adamma, Ethiopia
3
Department of Physics, Injibara University, 40, Injibara, Ethiopia
4
Department of Physics, Arba Minch University, 21, Arba Minch, Ethiopia
a
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Received:
16
May
2025
Accepted:
10
August
2025
Published online:
26
August
2025
We study a hybrid optomagnonic system composed of two coupled cavities, where the first cavity hosts magnon–photon and phonon–photon interactions, and the second cavity supports only magnon–photon coupling. The cavities are coupled via photon hopping, and the magnon modes represent collective spin excitations in yttrium iron garnet (YIG) spheres. Using a continuous-variable formalism, we investigate the generation and transfer of steady-state entanglement among different subsystems. Our results show that entanglement can be remotely established through a combination of nonlinear radiation pressure and linear interactions, including magnetic dipole coupling and photon hopping. We show that experimentally adjustable parameters such as detunings and coupling strengths have a significant impact on the robustness and strength of entanglement. Notably, some bipartite entanglements are resistant to thermal noise, indicating that they may have implications in quantum information. These results give a platform for probing quantum correlations and decoherence at macroscopic dimensions and provide important insights for the design of long-range quantum networks.
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© The Author(s), under exclusive licence to Società Italiana di Fisica and Springer-Verlag GmbH Germany, part of Springer Nature 2025
Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.
