Particle Detectors from Localized Quantum Field Theories
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arXiv
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| Main Authors: | , , , |
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| Format: | Preprint |
| Published: |
2023
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| _version_ | 1866916141865107456 |
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| author | Perche, T. Rick Polo-Gómez, José Torres, Bruno de S. L. Martín-Martínez, Eduardo |
| author_facet | Perche, T. Rick Polo-Gómez, José Torres, Bruno de S. L. Martín-Martínez, Eduardo |
| contents | We present a fully relativistic model for localized probes in quantum field theory. Furthermore, we show that it is possible to obtain particle detector models from localized quantum field theories that interact with a free quantum field. In particular, a particle detector model is obtained when one traces out over inaccessible degrees of freedom of the localized field. This gives rise to a particle detector model, that is, a quantum degree of freedom that couples to a free field theory in an extended region of spacetime. Moreover, we show that the predictions of traditional particle detector models and fully relativistic localized fields completely coincide to leading order in perturbation theory. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2308_11698 |
| institution | arXiv |
| publishDate | 2023 |
| record_format | arxiv |
| spellingShingle | Particle Detectors from Localized Quantum Field Theories Perche, T. Rick Polo-Gómez, José Torres, Bruno de S. L. Martín-Martínez, Eduardo Quantum Physics General Relativity and Quantum Cosmology High Energy Physics - Theory We present a fully relativistic model for localized probes in quantum field theory. Furthermore, we show that it is possible to obtain particle detector models from localized quantum field theories that interact with a free quantum field. In particular, a particle detector model is obtained when one traces out over inaccessible degrees of freedom of the localized field. This gives rise to a particle detector model, that is, a quantum degree of freedom that couples to a free field theory in an extended region of spacetime. Moreover, we show that the predictions of traditional particle detector models and fully relativistic localized fields completely coincide to leading order in perturbation theory. |
| title | Particle Detectors from Localized Quantum Field Theories |
| topic | Quantum Physics General Relativity and Quantum Cosmology High Energy Physics - Theory |
| url | https://arxiv.org/abs/2308.11698 |