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arXiv · 2507.12065

Optomagnonic continuous-variable quantum teleportation enhanced by non-Gaussian distillation

Zi-Xu Lu·Xuan Zuo·Zhi-Yuan Fan·Jie Li
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Abstract

The capability of magnons to coherently couple with various quantum systems makes them an ideal candidate to build hybrid quantum systems. The optomagnonic coupling is essential for constructing a hybrid magnonic quantum network, as the transmission of quantum information among remote quantum nodes must be accomplished using light rather than microwave field. Here we provide an optomagnonic continuous-variable quantum teleportation protocol, which enables the transfer of an input optical state to a remote magnon mode. To overcome the currently relatively weak coupling in the experiment, we introduce non-Gaussian distillation operations to enhance the optomagnonic entanglement and thus the fidelity of the teleportation. An auxiliary microwave cavity is adopted to realize the non-Gaussian and displacement operations on magnons. We show that a series of optical states, such as coherent, single-photon, squeezed and cat states, can be teleported to the magnon mode. The work provides guidance for the experimental realization of magnonic quantum repeaters and quantum networks and a new route to prepare diverse magnonic quantum states exploiting the photon-to-magnon quantum teleportation.

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Zi-Xu Lu, Xuan Zuo, Zhi-Yuan Fan, Jie Li. 2025-10-07. Optomagnonic continuous-variable quantum teleportation enhanced by non-Gaussian distillation. https://doi.org/10.1103/7215-zhbv

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