Quantum entanglement generation on magnons assisted with microwave
cavities coupled to a superconducting qubit
- URL: http://arxiv.org/abs/2301.05820v1
- Date: Sat, 14 Jan 2023 05:29:14 GMT
- Title: Quantum entanglement generation on magnons assisted with microwave
cavities coupled to a superconducting qubit
- Authors: Jiu-Ming Li, Shao-Ming Fei
- Abstract summary: We present protocols to generate quantum entanglement on nonlocal magnons in hybrid systems composed of yttrium iron garnet (YIG) spheres, microwave cavities and a superconducting (SC) qubit.
- Score: 0.0
- License: http://creativecommons.org/licenses/by/4.0/
- Abstract: We present protocols to generate quantum entanglement on nonlocal magnons in
hybrid systems composed of yttrium iron garnet (YIG) spheres, microwave
cavities and a superconducting (SC) qubit. In the schemes, the YIGs are coupled
to respective microwave cavities in resonant way, and the SC qubit is placed at
the center of the cavities, which interacts with the cavities simultaneously.
By exchanging the virtual photon, the cavities can indirectly interact in the
far-detuning regime. Detailed protocols are presented to establish entanglement
for two, three and arbitrary $N$ magnons with reasonable fidelities.
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