Squeezed light enables quantum-enhanced phase estimation, with crucial applications in both fundamental physics and emerging technologies. To fully exploit the advantage provided by this approach, estimation protocols must remain optimal across the entire parameter range and resilient to instabilities in the probe state. In this context, strategies that rely on pre-calibrated squeezing levels are vulnerable to degradation over time and become sub optimalwhenexperimentalconditionsfluctuate.Here,wedevelopanadaptive multiparameter estimation strategy for ab-initio phase estimation, achieving sub-shot noise limit precision in the full periodicity interval [0, π), without relying on prior knowledge of the squeezing parameter. Our approach employs real-time feedback to jointly estimate both the optical phase and the squeezing level, ensuring robustness against experimental drifts and calibra tion errors. This self-calibrating scheme establishes a reliable quantum enhanced sensing framework, opening new routes for practical scenarios and scalable distributed sensor networks using squeezed light.
G. Minati, E. Urbani, N. Spagnolo, V. Cimini, F. Sciarrino. Multiparameter quantum-enhanced adaptive metrology with squeezed light, Nature Communications17, 6418 (2026) [arXiv:2510.14739]