Studying Maximal Entanglement and Bell Nonlocality at an Electron-Ion Collider
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arXiv
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| Autores principales: | , , |
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| Formato: | Preprint |
| Publicado: |
2025
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| _version_ | 1866912965253398528 |
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| author | Qi, Wei Guo, Zijing Xiao, Bo-Wen |
| author_facet | Qi, Wei Guo, Zijing Xiao, Bo-Wen |
| contents | In this paper, we propose to test quantum entanglement and Bell nonlocality at an Electron-Ion Collider (EIC). By computing the spin correlations in quark-antiquark pairs produced via photon-gluon fusion, we find that longitudinally polarized photons produce maximal entanglement at leading order, while transversely polarized photons generate significant entanglement near the threshold and in the ultra-relativistic regime. Compared to hadron colliders, the EIC provides a cleaner experimental environment for measuring entanglement through the $γ^\ast g \to q\bar{q}$ channel, offering a strong signal and a promising avenue to verify Bell nonlocality. This study extends entanglement measurements to the EIC, presenting new opportunities to explore the interplay of quantum information phenomena and hadronic physics in the EIC era. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2506_12889 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Studying Maximal Entanglement and Bell Nonlocality at an Electron-Ion Collider Qi, Wei Guo, Zijing Xiao, Bo-Wen High Energy Physics - Phenomenology High Energy Physics - Experiment Nuclear Experiment Nuclear Theory Quantum Physics In this paper, we propose to test quantum entanglement and Bell nonlocality at an Electron-Ion Collider (EIC). By computing the spin correlations in quark-antiquark pairs produced via photon-gluon fusion, we find that longitudinally polarized photons produce maximal entanglement at leading order, while transversely polarized photons generate significant entanglement near the threshold and in the ultra-relativistic regime. Compared to hadron colliders, the EIC provides a cleaner experimental environment for measuring entanglement through the $γ^\ast g \to q\bar{q}$ channel, offering a strong signal and a promising avenue to verify Bell nonlocality. This study extends entanglement measurements to the EIC, presenting new opportunities to explore the interplay of quantum information phenomena and hadronic physics in the EIC era. |
| title | Studying Maximal Entanglement and Bell Nonlocality at an Electron-Ion Collider |
| topic | High Energy Physics - Phenomenology High Energy Physics - Experiment Nuclear Experiment Nuclear Theory Quantum Physics |
| url | https://arxiv.org/abs/2506.12889 |