Realistic prospects for testing a relativistic local quantum measurement inequality
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arXiv
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| Hauptverfasser: | , |
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| Format: | Preprint |
| Veröffentlicht: |
2026
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| _version_ | 1866912826350632960 |
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| author | Falcone, Riccardo Conti, Claudio |
| author_facet | Falcone, Riccardo Conti, Claudio |
| contents | We investigate the experimental prospects for testing a relativistic local quantum measurement inequality that quantifies the trade-off between vacuum insensitivity and responsiveness to excitations for finite-size detectors. Building on the Reeh--Schlieder approximation for coherent states, we derive an explicit and practically applicable bound for arbitrary coherent states. To connect with realistic photodetection scenarios, we model the detection region as a square prism operating over a finite time window and consider a normally incident single-mode coherent state. Numerical results exhibit the expected qualitative behavior: suppressing dark counts necessarily tightens the achievable click probability. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2601_10354 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | Realistic prospects for testing a relativistic local quantum measurement inequality Falcone, Riccardo Conti, Claudio Quantum Physics High Energy Physics - Theory We investigate the experimental prospects for testing a relativistic local quantum measurement inequality that quantifies the trade-off between vacuum insensitivity and responsiveness to excitations for finite-size detectors. Building on the Reeh--Schlieder approximation for coherent states, we derive an explicit and practically applicable bound for arbitrary coherent states. To connect with realistic photodetection scenarios, we model the detection region as a square prism operating over a finite time window and consider a normally incident single-mode coherent state. Numerical results exhibit the expected qualitative behavior: suppressing dark counts necessarily tightens the achievable click probability. |
| title | Realistic prospects for testing a relativistic local quantum measurement inequality |
| topic | Quantum Physics High Energy Physics - Theory |
| url | https://arxiv.org/abs/2601.10354 |