The multimode nature of spacetime entanglement in QFT
Fuente:
arXiv
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| Autores principales: | , , , , , , , |
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| Formato: | Preprint |
| Publicado: |
2024
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| _version_ | 1866914956756123648 |
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| author | Agullo, Ivan Bonga, Béatrice Martín-Martínez, Eduardo Nadal-Gisbert, Sergi Perche, T. Rick Polo-Gómez, José Ribes-Metidieri, Patricia Torres, Bruno de S. L. |
| author_facet | Agullo, Ivan Bonga, Béatrice Martín-Martínez, Eduardo Nadal-Gisbert, Sergi Perche, T. Rick Polo-Gómez, José Ribes-Metidieri, Patricia Torres, Bruno de S. L. |
| contents | We demonstrate the presence of multimode entanglement in the vacuum state of a free, massless scalar quantum field in four-dimensional flat spacetime between two sets of field modes, each contained within a spacetime region that is causally disconnected from the other. This is true despite the fact that entanglement between pairs of individual field modes is sparse and appears only when the two individual modes are carefully selected. Our results reveal that, while entanglement between individual modes is limited, bipartite multimode entanglement in quantum field theory is ubiquitous. We further argue that such multimode entanglement is operationally extractable, and it forms the basis of the entanglement commonly discussed in entanglement harvesting protocols. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2409_16368 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | The multimode nature of spacetime entanglement in QFT Agullo, Ivan Bonga, Béatrice Martín-Martínez, Eduardo Nadal-Gisbert, Sergi Perche, T. Rick Polo-Gómez, José Ribes-Metidieri, Patricia Torres, Bruno de S. L. Quantum Physics General Relativity and Quantum Cosmology We demonstrate the presence of multimode entanglement in the vacuum state of a free, massless scalar quantum field in four-dimensional flat spacetime between two sets of field modes, each contained within a spacetime region that is causally disconnected from the other. This is true despite the fact that entanglement between pairs of individual field modes is sparse and appears only when the two individual modes are carefully selected. Our results reveal that, while entanglement between individual modes is limited, bipartite multimode entanglement in quantum field theory is ubiquitous. We further argue that such multimode entanglement is operationally extractable, and it forms the basis of the entanglement commonly discussed in entanglement harvesting protocols. |
| title | The multimode nature of spacetime entanglement in QFT |
| topic | Quantum Physics General Relativity and Quantum Cosmology |
| url | https://arxiv.org/abs/2409.16368 |