Robust Tripartite Entanglement Generation via Correlated Noise in Spin Qubits
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arXiv
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| Auteurs principaux: | , , , , |
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| Format: | Preprint |
| Publié: |
2025
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| _version_ | 1866917242748272640 |
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| author | Driessen, Sander Zou, Ji Thingstad, Even Klinovaja, Jelena Loss, Daniel |
| author_facet | Driessen, Sander Zou, Ji Thingstad, Even Klinovaja, Jelena Loss, Daniel |
| contents | We investigate the generation of genuine tripartite entanglement in a triangular spin-qubit system due to spatially correlated noise. In particular, we demonstrate how the formation of a highly entangled dark state -- a W state -- enables robust, long-lived tripartite entanglement. Surprisingly, we find that environmentally induced coherent coupling does not play a crucial role in sustaining this entanglement. This contrasts sharply with the two-qubit case, where the induced coupling significantly influences the entanglement dynamics. Furthermore, we explore two promising approaches to enhance the tripartite entanglement by steering the system towards the dark state: post-selection and coherent driving. Our findings offer a robust method for generating high-fidelity tripartite entangled states with potential applications in quantum computation. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2506_20466 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Robust Tripartite Entanglement Generation via Correlated Noise in Spin Qubits Driessen, Sander Zou, Ji Thingstad, Even Klinovaja, Jelena Loss, Daniel Quantum Physics Mesoscale and Nanoscale Physics We investigate the generation of genuine tripartite entanglement in a triangular spin-qubit system due to spatially correlated noise. In particular, we demonstrate how the formation of a highly entangled dark state -- a W state -- enables robust, long-lived tripartite entanglement. Surprisingly, we find that environmentally induced coherent coupling does not play a crucial role in sustaining this entanglement. This contrasts sharply with the two-qubit case, where the induced coupling significantly influences the entanglement dynamics. Furthermore, we explore two promising approaches to enhance the tripartite entanglement by steering the system towards the dark state: post-selection and coherent driving. Our findings offer a robust method for generating high-fidelity tripartite entangled states with potential applications in quantum computation. |
| title | Robust Tripartite Entanglement Generation via Correlated Noise in Spin Qubits |
| topic | Quantum Physics Mesoscale and Nanoscale Physics |
| url | https://arxiv.org/abs/2506.20466 |