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Quantum Readout Measurement Hardware

Realistic prospects for testing a relativistic local quantum measurement inequality

arXiv
Authors: Riccardo Falcone, Claudio Conti

Year

2026

Paper ID

3767

Status

Preprint

Abstract Read

~2 min

Abstract Words

92

Citations

N/A

Abstract

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.

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  • This paper contributes to the Quantum Readout & Measurement Hardware research area in the Quantum Articles archive.
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  • We investigate the experimental prospects for testing a relativistic local quantum measurement inequality that quantifies the trade-off between vacuum insensitivity and...

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References & Citation Signals

[1] DOI https://doi.org/arXiv:2601.10354 [2] arXiv https://arxiv.org/abs/2601.10354 [3] Publisher https://arxiv.org/abs/2601.10354

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