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arXiv · 2603.10571

Entanglement distribution among distinct mechanical nodes in a quantum network

Zhi-Yuan Fan·Liu-Yong Cheng
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Abstract

We propose two schemes to achieve remote entanglement distribution between two mechanical nodes with a significant frequency mismatch, based on optomechanical systems. The first scheme utilizes the physical mechanism to redistribute the quantum entanglement initially established in a dispersively-coupled optomechanical system with a megahertz mechanical resonance to a distant optomechanical system which embodies the tripleresonant interaction induced by the scattering of gigahertz mechanical phonon. We also provide a fast optical pulse protocol to realize the long-distance entanglement distribution from the optomechanical system supporting the gigahertz mechanical mode to the megahertz mechanical mode included in a distant optomechanical system. Specifically, these two schemes respectively demonstrate the megahertz-to-gigahertz and gigahertz-tomegahertz entanglement distribution in the quantum network of optical photons and phonons. This work may facilitate the application of various mechanical systems in hybrid quantum network-based quantum technologies and fundamental physical research.

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Zhi-Yuan Fan, Liu-Yong Cheng. 2026-03-11. Entanglement distribution among distinct mechanical nodes in a quantum network. https://arxiv.org/abs/2603.10571

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