A protocol using offline bilateral Pauli-twirling forces insecure quantum channels into Bell-diagonal form to certify that users' estimation error is strictly better than any eavesdropper's while preserving sensitivity.
Advances in Photonic Quantum Sensing
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abstract
Quantum sensing has become a mature and broad field. It is generally related with the idea of using quantum resources to boost the performance of a number of practical tasks, including the radar-like detection of faint objects, the readout of information from optical memories or fragile physical systems, and the optical resolution of extremely close point-like sources. Here we first focus on the basic tools behind quantum sensing, discussing the most recent and general formulations for the problems of quantum parameter estimation and hypothesis testing. With this basic background in our hands, we then review emerging applications of quantum sensing in the photonic regime both from a theoretical and experimental point of view. Besides the state-of-the-art, we also discuss open problems and potential next steps.
years
2026 3verdicts
UNVERDICTED 3representative citing papers
A quenched chiral spin chain produces analog Hawking radiation with non-Planckian spectrum but Poissonian statistics, detectable by a weakly coupled qubit sensor that reveals the horizon-induced temperature.
Correlated sensing with thermal-state resonant detectors enables statistical tests via symmetric correlators to reveal quantum noise characteristics of gravitons in two- and three-detector tabletop configurations.
citing papers explorer
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Emergent Hawking Radiation and Quantum Sensing in a Quenched Chiral Spin Chain
A quenched chiral spin chain produces analog Hawking radiation with non-Planckian spectrum but Poissonian statistics, detectable by a weakly coupled qubit sensor that reveals the horizon-induced temperature.