Quantum Conformance Test
arXiv:2012.15282 · doi:10.1126/sciadv.abm3093
Abstract
We introduce a protocol addressing the conformance test problem, which consists in determining whether a process under test conforms to a reference one. We consider a process to be characterized by the set of end-product it produces, which is generated according to a given probability distribution. We formulate the problem in the context of hypothesis testing and consider the specific case in which the objects can be modeled as pure loss channels. We demonstrate theoretically that a simple quantum strategy, using readily available resources and measurement schemes in the form of two-mode squeezed vacuum and photon-counting, can outperform any classical strategy. We experimentally implement this protocol, exploiting optical twin beams, validating our theoretical results, and demonstrating that, in this task, there is a quantum advantage in a realistic setting.
References in corpus (11)
- Experimental realization of sub-shot-noise quantum imaging
- Quantum Illumination with Gaussian States
- Experimental realisation of quantum illumination
- Entanglement-Enhanced Sensing in a Lossy and Noisy Environment
- Optimal quantum estimation of loss in bosonic channels
- Realisation of the first sub shot noise wide field microscope
- Optimal estimation of losses at the ultimate quantum limit with non-Gaussian states
- Sub-shot-noise photon-number correlation in mesoscopic twin-beam of light
- Quantum imaging with sub-Poissonian light: challenges and perspectives in optical metrology
- Absolute calibration of a CCD camera with twin beams
- Experimental joint signal-idler quasi-distributions and photon-number statistics for mesoscopic twin beams