Entanglement features in scattering mediated by heavy particles
Fuente:
arXiv
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| Autori principali: | , , |
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| Natura: | Preprint |
| Pubblicazione: |
2025
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| _version_ | 1866915530037788672 |
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| author | Sou, Chon Man Wang, Yi Zhang, Xingkai |
| author_facet | Sou, Chon Man Wang, Yi Zhang, Xingkai |
| contents | The amount of information propagated by an intermediate heavy particle exhibits characteristic features in inelastic scatterings with $n\geq 3$ final particles. As the total energy increases, the entanglement entropy, between its decay products and other final particles, exhibits a universal sharp dip, suppressed by its small decay rate. This indicates an entanglement suppression from a low-energy effective theory to a channel dominated by an on-shell heavy particle. As demonstrations of these entanglement features, we study concrete models of $2\to 3$ and $2\to 4$ scatterings, which shed light on the entanglement structure beyond the area law derived for $2\to 2$ scattering. In practice, these features may be probed by suitably marginalizing the phase-space distribution of final particles. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2507_03555 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Entanglement features in scattering mediated by heavy particles Sou, Chon Man Wang, Yi Zhang, Xingkai High Energy Physics - Theory High Energy Physics - Phenomenology Quantum Physics The amount of information propagated by an intermediate heavy particle exhibits characteristic features in inelastic scatterings with $n\geq 3$ final particles. As the total energy increases, the entanglement entropy, between its decay products and other final particles, exhibits a universal sharp dip, suppressed by its small decay rate. This indicates an entanglement suppression from a low-energy effective theory to a channel dominated by an on-shell heavy particle. As demonstrations of these entanglement features, we study concrete models of $2\to 3$ and $2\to 4$ scatterings, which shed light on the entanglement structure beyond the area law derived for $2\to 2$ scattering. In practice, these features may be probed by suitably marginalizing the phase-space distribution of final particles. |
| title | Entanglement features in scattering mediated by heavy particles |
| topic | High Energy Physics - Theory High Energy Physics - Phenomenology Quantum Physics |
| url | https://arxiv.org/abs/2507.03555 |