Interaction-free measurement of multiple objects using a universal integrated photonic processor
Quantum Physics
2026-04-07 v1
Abstract
The phenomenon of interaction-free measurement (IFM) enables the probabilistic detection of an absorbing object with reduced photon absorption. We report the experimental implementation of a simultaneous IFM of multiple objects using a single quantum probe on the cloud-based Ascella photonic processor of company Quandela. We demonstrate sequential IFM of up to 5 objects using a single photon, significantly extending the original IFM scheme for a single object. The experimental error-mitigated results confirm the theoretical predictions for this sequential IFM setup, and demonstrate a practical approach to scaling IFM to more complex quantum interrogation tasks.
Keywords
Cite
@article{arxiv.2604.04691,
title = {Interaction-free measurement of multiple objects using a universal integrated photonic processor},
author = {Sara Franco and Anita Camillini and Ernesto F. Galvão},
journal= {arXiv preprint arXiv:2604.04691},
year = {2026}
}
Comments
16 pages, 18 figures