Two-photon emission from uniform acceleration: Unruh excitation, radiative decay, and field entanglement
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arXiv
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| Format: | Preprint |
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2025
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| _version_ | 1866908471343972352 |
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| author | Azizi, Arash |
| author_facet | Azizi, Arash |
| contents | We analyze the two-photon emission process of a uniformly accelerated Unruh-DeWitt detector interacting with a massless scalar field in Minkowski spacetime. Using second-order perturbation theory, we derive the exact final quantum state of the field and classify the emitted photon pairs according to their directional decomposition into Unruh modes: right-right (RR), left-left (LL), and mixed (RL/LR) channels. The RR and LL contributions produce photon pairs within a single Rindler wedge, while RL and LR emissions generate entanglement across wedges. The first emission arises from a counter-rotating (Unruh) excitation, followed by a rotating Wigner-Weisskopf-like decay. Our results reveal how acceleration imprints entanglement and thermal structure on the radiation, offering new insight into quantum field theory in non-inertial frames and potential applications in relativistic quantum information. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2507_22164 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Two-photon emission from uniform acceleration: Unruh excitation, radiative decay, and field entanglement Azizi, Arash High Energy Physics - Theory We analyze the two-photon emission process of a uniformly accelerated Unruh-DeWitt detector interacting with a massless scalar field in Minkowski spacetime. Using second-order perturbation theory, we derive the exact final quantum state of the field and classify the emitted photon pairs according to their directional decomposition into Unruh modes: right-right (RR), left-left (LL), and mixed (RL/LR) channels. The RR and LL contributions produce photon pairs within a single Rindler wedge, while RL and LR emissions generate entanglement across wedges. The first emission arises from a counter-rotating (Unruh) excitation, followed by a rotating Wigner-Weisskopf-like decay. Our results reveal how acceleration imprints entanglement and thermal structure on the radiation, offering new insight into quantum field theory in non-inertial frames and potential applications in relativistic quantum information. |
| title | Two-photon emission from uniform acceleration: Unruh excitation, radiative decay, and field entanglement |
| topic | High Energy Physics - Theory |
| url | https://arxiv.org/abs/2507.22164 |