Optimization of entanglement harvesting with arbitrary temporal profiles: the limit of second order perturbation theory
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arXiv
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| Format: | Preprint |
| Published: |
2026
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| _version_ | 1866914516025999360 |
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| author | Morote-Balboa, Marcos Perche, T. Rick |
| author_facet | Morote-Balboa, Marcos Perche, T. Rick |
| contents | We study the protocol of entanglement harvesting when two local probes couple to the vacuum of a real scalar quantum field with arbitrary temporal profiles. We use a Hermite expansion to efficiently compute smeared field propagators in closed-form, recasting the negativity between the probes as a matrix product. We then optimize the protocol under different signalling conditions, enhancing entanglement harvesting by several orders of magnitude. This optimization would take current experimental proposals beyond the regime of second order perturbation theory. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2604_06303 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | Optimization of entanglement harvesting with arbitrary temporal profiles: the limit of second order perturbation theory Morote-Balboa, Marcos Perche, T. Rick Quantum Physics General Relativity and Quantum Cosmology High Energy Physics - Theory We study the protocol of entanglement harvesting when two local probes couple to the vacuum of a real scalar quantum field with arbitrary temporal profiles. We use a Hermite expansion to efficiently compute smeared field propagators in closed-form, recasting the negativity between the probes as a matrix product. We then optimize the protocol under different signalling conditions, enhancing entanglement harvesting by several orders of magnitude. This optimization would take current experimental proposals beyond the regime of second order perturbation theory. |
| title | Optimization of entanglement harvesting with arbitrary temporal profiles: the limit of second order perturbation theory |
| topic | Quantum Physics General Relativity and Quantum Cosmology High Energy Physics - Theory |
| url | https://arxiv.org/abs/2604.06303 |