Chiral coupling between a ferromagnetic magnon and a superconducting qubit

• URL: http://arxiv.org/abs/2211.05285v2
• Date: Wed, 16 Nov 2022 01:45:33 GMT
• Title: Chiral coupling between a ferromagnetic magnon and a superconducting qubit
• Authors: Ya-long Ren, Sheng-li Ma and Fu-li Li
• Abstract summary: Chiral coupling at the single-quantum level promises to be a remarkable potential for quantum information processing. We propose to achieve a chiral interaction between a magnon mode in a ferromagnetic sphere and a superconducting qubit mediated by a one-dimensional coupled-cavity array.
• Score: 0.0
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Chiral coupling at the single-quantum level promises to be a remarkable potential for quantum information processing. Here we propose to achieve a chiral interaction between a magnon mode in a ferromagnetic sphere and a superconducting qubit mediated by a one-dimensional coupled-cavity array. When the qubit is coupled to two lattice sites of the array and each one is encoded with a tunable phase, we can acquire a directional qubit-magnon interaction via the quantum interference effect. This work opens up a new route to construct chiral devices, which are expected to become a building block in quantum magnonic networks.

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