Generating entanglement of two acoustic modes by driving the qubit in circuit quantum acoustodynamics system Article Swipe

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Mei‐Rong Wei , Qi Guo , Gang Li , Tiancai Zhang ·

YOU? · · 2024 · Open Access · · DOI: https://doi.org/10.48550/arxiv.2410.11630

We propose how to generate the entanglement of two long-lived phonon modes in a circuit quantum acoustodynamics system, which consists of a multi-mode high-frequency bulk acoustic wave resonator and a transmon-type superconducting qubit. Two acoustic modes couple to the qubit through piezoelectric interaction, and the qubit is driven by a microwave field. Under the condition of far detuning between the qubit and acoustic modes, the qubit can be eliminated adiabatically, and thus establishing the indirect interaction between the two acoustic modes. We demonstrate that such the indirect interaction can be the parametric-amplification-type interaction by appropriately choosing the drive frequency and strength, so the entanglement between acoustic modes can be created by the direct unitary evolution. We numerically analyze the parameter conditions for generating the entanglement in detail and evaluate the influence of system dissipations and noise. The results show that the scheme can be realized using currently available parameters and has strong robustness against the dissipations and environmental temperature. This work may provide efficient resource for the quantum information processing based on the phononic systems.

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Qubit Quantum entanglement Physics Quantum Quantum mechanics

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Type: preprint
Language: en
Landing Page: http://arxiv.org/abs/2410.11630
PDF: https://arxiv.org/pdf/2410.11630
OA Status: green
Related Works: 10
OpenAlex ID: https://openalex.org/W4403574934

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DOI: https://doi.org/10.48550/arxiv.2410.11630

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Title: Generating entanglement of two acoustic modes by driving the qubit in circuit quantum acoustodynamics system

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Type: preprint

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Language: en

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Publication year: 2024

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Publication date: 2024-10-15

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Authors: Mei‐Rong Wei, Qi Guo, Gang Li, Tiancai Zhang

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Landing page: https://arxiv.org/abs/2410.11630

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PDF URL: https://arxiv.org/pdf/2410.11630

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Concepts: Qubit, Quantum entanglement, Physics, Quantum, Quantum mechanics

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Related works (count): 10

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