On bipartite and tripartite entanglement at present and future particle colliders
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arXiv
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| Auteurs principaux: | , |
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| Format: | Preprint |
| Publié: |
2024
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| _version_ | 1866909160511111168 |
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| author | Subba, Amir Rahaman, Rafiqul |
| author_facet | Subba, Amir Rahaman, Rafiqul |
| contents | Entanglement, rooted in the non-deterministic, non-local nature of quantum mechanics, serves as a fundamental correlation. High-energy particle colliders offer a unique platform for exploring entanglement in the relativistic regime. The recent observation of entanglement in $t\bar{t}$ production by ATLAS has sparked significant interest in investigating entanglement phenomena at colliders. While bipartite entanglement receives extensive attention, tripartite entanglement remains relatively uncharted. We investigate tripartite entanglement in $t\bar{t}Z$ production at the Large Hadron Collider (LHC) within the Standard Model and with a dimension-$8$ effective operator. Additionally, we explore bipartite entanglement in $t\bar{t}$, $tW^-$, and di-boson production processes, namely $W^+W^-$, $ZZ$, and $W^+Z$, at the LHC and future $e^+e^-$ collider. We numerically compute various measures of entanglement through Monte Carlo events based on the spin density matrix, with its elements (polarization and spin correlation) obtained by analyzing the angular distribution of the final decayed leptons. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2404_03292 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | On bipartite and tripartite entanglement at present and future particle colliders Subba, Amir Rahaman, Rafiqul High Energy Physics - Phenomenology High Energy Physics - Theory Entanglement, rooted in the non-deterministic, non-local nature of quantum mechanics, serves as a fundamental correlation. High-energy particle colliders offer a unique platform for exploring entanglement in the relativistic regime. The recent observation of entanglement in $t\bar{t}$ production by ATLAS has sparked significant interest in investigating entanglement phenomena at colliders. While bipartite entanglement receives extensive attention, tripartite entanglement remains relatively uncharted. We investigate tripartite entanglement in $t\bar{t}Z$ production at the Large Hadron Collider (LHC) within the Standard Model and with a dimension-$8$ effective operator. Additionally, we explore bipartite entanglement in $t\bar{t}$, $tW^-$, and di-boson production processes, namely $W^+W^-$, $ZZ$, and $W^+Z$, at the LHC and future $e^+e^-$ collider. We numerically compute various measures of entanglement through Monte Carlo events based on the spin density matrix, with its elements (polarization and spin correlation) obtained by analyzing the angular distribution of the final decayed leptons. |
| title | On bipartite and tripartite entanglement at present and future particle colliders |
| topic | High Energy Physics - Phenomenology High Energy Physics - Theory |
| url | https://arxiv.org/abs/2404.03292 |