Hybrid quantum surface acoustic wave with skyrmion qubit for quantum information processing

• URL: http://arxiv.org/abs/2503.06841v1
• Date: Mon, 10 Mar 2025 02:02:35 GMT
• Title: Hybrid quantum surface acoustic wave with skyrmion qubit for quantum information processing
• Authors: Yu-Yuan Chen, Zhihui Peng, Yu-xi Liu,
• Abstract summary: hybrid quantum system composed of skyrmion qubit and a SAW cavity.<n>Results show that the system allows for strong coupling between skyrmion qubit and single phonon of different modes.
• Score: 1.4630192509676043
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Surface acoustic wave (SAW) devices are key components of classical communication systems and recently studied for quantum information processing. We here propose and study a hybrid quantum system composed of skyrmion qubit and a SAW cavity, which supports a number of long-lived phononic modes. The results show that the system allows for strong coupling between skyrmion qubit and single phonon of different modes. By manipulating the qubit(s) through a static magnetic field and a time-dependent modulation magnetic field, we further study the interaction between skyrmion qubit and individual phononic modes, phonon-phonon interaction, and qubit-qubit interaction, which operates in strong-coupling regime. The controllability of nanoscale skyrmion qubit and the dense phononic modes of single SAW cavity would make our system have promising applications in large-scale quantum communication and computing.

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