Heisenberg-Limited Continuous-Variable Distributed Quantum Metrology with Arbitrary Weights

Author(s): Wenchao Ge and Kurt Jacobs Distributed quantum metrology (DQM) enables the estimation of global functions of $d$ distributed parameters beyond the capability of separable sensors. Continuous-variable DQM involves using a linear network with at least one nonclassical input. Here, we fully elucidate the structure of linear netw… [Phys. Rev. Lett. 135, 100801] Published Tue Sep 02, 2025