Positivity in Amplitudes and Quantum Entanglement
Fuente:
arXiv
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| Autori principali: | , , , |
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| Natura: | Preprint |
| Pubblicazione: |
2024
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| Soggetti: | |
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| _version_ | 1866918513998823424 |
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| author | Aoude, Rafael Elor, Gilly Remmen, Grant N. Sumensari, Olcyr |
| author_facet | Aoude, Rafael Elor, Gilly Remmen, Grant N. Sumensari, Olcyr |
| contents | We explore the connection of positivity of the imaginary part of forward elastic amplitudes for perturbative scattering with consistency of the entanglement generated by the S-matrix, for states with arbitrary internal quantum numbers such as flavor. We also analyze "disentanglers," certain highly entangled initial states for which the action of the S-matrix is to decrease subsystem entanglement. As a by-product, we develop a framework based on wave packets to regularize the spacetime divergences that appear in the plane-wave derivation of the $2\to2$ entanglement expression. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2402_16956 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Positivity in Amplitudes and Quantum Entanglement Aoude, Rafael Elor, Gilly Remmen, Grant N. Sumensari, Olcyr High Energy Physics - Theory High Energy Physics - Phenomenology Quantum Physics We explore the connection of positivity of the imaginary part of forward elastic amplitudes for perturbative scattering with consistency of the entanglement generated by the S-matrix, for states with arbitrary internal quantum numbers such as flavor. We also analyze "disentanglers," certain highly entangled initial states for which the action of the S-matrix is to decrease subsystem entanglement. As a by-product, we develop a framework based on wave packets to regularize the spacetime divergences that appear in the plane-wave derivation of the $2\to2$ entanglement expression. |
| title | Positivity in Amplitudes and Quantum Entanglement |
| topic | High Energy Physics - Theory High Energy Physics - Phenomenology Quantum Physics |
| url | https://arxiv.org/abs/2402.16956 |