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| Autori principali: | , , , , , |
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| Natura: | Preprint |
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2025
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| Accesso online: | https://arxiv.org/abs/2509.07386 |
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| _version_ | 1866914029345177600 |
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| author | Hessami, Rafi Al-Naseri, Haidar Yadav, Monika Oruganti, Maanas Hemanth Naranjo, Brian Rosenzweig, James |
| author_facet | Hessami, Rafi Al-Naseri, Haidar Yadav, Monika Oruganti, Maanas Hemanth Naranjo, Brian Rosenzweig, James |
| contents | The Unruh effect predicts that a uniformly accelerating observer perceives the vacuum as a thermal bath, yet direct observation remains elusive [1]. We simulate Unruh radiation in realistic high-intensity laser-electron collisions relevant to FACET-II and LUXE using fully three-dimensional Monte Carlo methods. In our model, Unruh emission is treated as scattering from a rest-frame thermal spectrum with Klein-Nishina cross sections, while nonlinear Compton radiation is computed across many harmonic orders with photon recoil. We map the laboratory-frame spectral-angular distributions and identify phase-space regions where the Unruh-to-Compton ratio is maximized. For current FACET-II-like parameters (a0 = 5), favorable windows for observing Unruh radiation occur at 200-400 microrad and 2-3 GeV, although the absolute signal is small. For future LUXE Phase-1 (a0 = 23.6), the ratio increases by more than two orders of magnitude, with optimal angles around 800 microrad and photon energies 2-6 GeV. Our results suggest that targeted off-axis, mid-energy selections can enhance sensitivity to Unruh-like signatures, motivating dedicated measurements and further theoretical scrutiny of the emission model at high field strengths. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2509_07386 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Simulating Unruh Radiation in High-Intensity Laser-Electron Interactions for Near-Term Experimental Tests Hessami, Rafi Al-Naseri, Haidar Yadav, Monika Oruganti, Maanas Hemanth Naranjo, Brian Rosenzweig, James High Energy Physics - Experiment General Relativity and Quantum Cosmology The Unruh effect predicts that a uniformly accelerating observer perceives the vacuum as a thermal bath, yet direct observation remains elusive [1]. We simulate Unruh radiation in realistic high-intensity laser-electron collisions relevant to FACET-II and LUXE using fully three-dimensional Monte Carlo methods. In our model, Unruh emission is treated as scattering from a rest-frame thermal spectrum with Klein-Nishina cross sections, while nonlinear Compton radiation is computed across many harmonic orders with photon recoil. We map the laboratory-frame spectral-angular distributions and identify phase-space regions where the Unruh-to-Compton ratio is maximized. For current FACET-II-like parameters (a0 = 5), favorable windows for observing Unruh radiation occur at 200-400 microrad and 2-3 GeV, although the absolute signal is small. For future LUXE Phase-1 (a0 = 23.6), the ratio increases by more than two orders of magnitude, with optimal angles around 800 microrad and photon energies 2-6 GeV. Our results suggest that targeted off-axis, mid-energy selections can enhance sensitivity to Unruh-like signatures, motivating dedicated measurements and further theoretical scrutiny of the emission model at high field strengths. |
| title | Simulating Unruh Radiation in High-Intensity Laser-Electron Interactions for Near-Term Experimental Tests |
| topic | High Energy Physics - Experiment General Relativity and Quantum Cosmology |
| url | https://arxiv.org/abs/2509.07386 |