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| Main Authors: | , , |
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| Format: | Preprint |
| Published: |
2026
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| Subjects: | |
| Online Access: | https://arxiv.org/abs/2604.11697 |
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| _version_ | 1866910125707493376 |
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| author | Fucilla, Michael Hatta, Yoshitaka Xiao, Bo-Wen |
| author_facet | Fucilla, Michael Hatta, Yoshitaka Xiao, Bo-Wen |
| contents | We calculate the spin density matrix of a back-to-back quark-antiquark pair inclusively produced in electron-nucleus scattering, taking into account the gluon saturation effect and the linearly polarized gluon distribution. We then investigate concurrence and stabilizer Rényi entropy, quantifying entanglement, Bell-nonlocality, and magic. We find that the linearly polarized gluon distribution tends to enhance the entanglement of a heavy quark pair when the total and relative transverse momenta of the pair are orthogonal. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2604_11697 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | Quantum entanglement in electron-nucleus collisions: Role of the linearly polarized gluon distribution Fucilla, Michael Hatta, Yoshitaka Xiao, Bo-Wen High Energy Physics - Phenomenology We calculate the spin density matrix of a back-to-back quark-antiquark pair inclusively produced in electron-nucleus scattering, taking into account the gluon saturation effect and the linearly polarized gluon distribution. We then investigate concurrence and stabilizer Rényi entropy, quantifying entanglement, Bell-nonlocality, and magic. We find that the linearly polarized gluon distribution tends to enhance the entanglement of a heavy quark pair when the total and relative transverse momenta of the pair are orthogonal. |
| title | Quantum entanglement in electron-nucleus collisions: Role of the linearly polarized gluon distribution |
| topic | High Energy Physics - Phenomenology |
| url | https://arxiv.org/abs/2604.11697 |