Emergent Bell-Triplet State in Proton-Proton Scattering
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arXiv
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| Main Authors: | , , , , , , , |
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| Format: | Preprint |
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2025
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| _version_ | 1866912908800163840 |
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| author | Shen, Z. X. Shang, H. Y. Ma, Y. G. Bai, D. Wang, S. M. Xu, Z. C. Ayyad, Y. Filgueira, C. |
| author_facet | Shen, Z. X. Shang, H. Y. Ma, Y. G. Bai, D. Wang, S. M. Xu, Z. C. Ayyad, Y. Filgueira, C. |
| contents | Entanglement is a key resource in quantum information science, yet its properties and applications in nuclear systems remain largely unexplored. Here, using proton-proton scattering as a quantum laboratory, we report the emergence of a near-pure Bell-triplet state at a laboratory energy of 151 MeV and a center-of-mass scattering angle of 90 degrees. In this unique kinematic regime, the scattering amplitude functions as a transition operator connecting distinct Bell states. Building upon this emergent resource, we propose a quantum teleportation protocol for proton spins, exploiting the intrinsic Hamiltonian of the strong interaction to perform the requisite Bell measurement. These findings effectively bridge few-body nuclear physics and quantum technology, establishing proton-proton scattering as both a source of high-fidelity entanglement and a natural processor for quantum information. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2510_24325 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Emergent Bell-Triplet State in Proton-Proton Scattering Shen, Z. X. Shang, H. Y. Ma, Y. G. Bai, D. Wang, S. M. Xu, Z. C. Ayyad, Y. Filgueira, C. Nuclear Theory Nuclear Experiment Quantum Physics Entanglement is a key resource in quantum information science, yet its properties and applications in nuclear systems remain largely unexplored. Here, using proton-proton scattering as a quantum laboratory, we report the emergence of a near-pure Bell-triplet state at a laboratory energy of 151 MeV and a center-of-mass scattering angle of 90 degrees. In this unique kinematic regime, the scattering amplitude functions as a transition operator connecting distinct Bell states. Building upon this emergent resource, we propose a quantum teleportation protocol for proton spins, exploiting the intrinsic Hamiltonian of the strong interaction to perform the requisite Bell measurement. These findings effectively bridge few-body nuclear physics and quantum technology, establishing proton-proton scattering as both a source of high-fidelity entanglement and a natural processor for quantum information. |
| title | Emergent Bell-Triplet State in Proton-Proton Scattering |
| topic | Nuclear Theory Nuclear Experiment Quantum Physics |
| url | https://arxiv.org/abs/2510.24325 |