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arXiv · 2308.13586

Macroscopic distant magnon-mode entanglement via a squeezed drive

Kamran Ullah·Muhammad Tahir Naseem·Özgür E. Müstecaplıoğlu
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Abstract

The generation of robust entanglement in quantum system arrays is a crucial aspect of the realization of efficient quantum information processing. Recently, the field of quantum magnonics has garnered significant attention as a promising platform for advancing in this direction. In our proposed scheme, we utilize a one-dimensional array of coupled cavities, with each cavity housing a single yttrium iron garnet (YIG) sphere coupled to the cavity mode through magnetic dipole interaction. To induce entanglement between YIGs, we employ a local squeezed reservoir, which provides the necessary nonlinearity for entanglement generation. Our results demonstrate the successful generation of bipartite and tripartite entanglement between distant magnon modes, all achieved through a single quantum reservoir. Furthermore, the steady-state entanglement between magnon modes is robust against magnon dissipation rates and environment temperature. Our results may lead to applications of cavity-magnon arrays in quantum information processing and quantum communication systems.

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Kamran Ullah, Muhammad Tahir Naseem, Özgür E. Müstecaplıoğlu. 2023-08-25. Macroscopic distant magnon-mode entanglement via a squeezed drive. https://doi.org/10.1103/physreva.110.063715

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