Distributed multi-parameter quantum metrology with a superconducting quantum network.

ABSTRACT: Quantum metrology has emerged as a powerful tool for timekeeping, field sensing, and precision measurements in fundamental physics. With the advent of distributed quantum metrology, its capabilities have extended to probing spatially distributed parameters across networked quantum systems. However, scalable implementations of distributed quantum metrology with multiparameter estimation remain limited, particularly due to the challenges of generating and distributing entanglement across a quantum network and dealing with incompatibilities in multiparameter quantum metrology. Here we demonstrate distributed multiparameter quantum metrology on a modular superconducting quantum network with low-loss microwave interconnects, a platform that uniquely combines fast gate operations, adaptive contr

SUBMITTER: Zhang J 

PROVIDER: S-EPMC12921027 | biostudies-literature | 2026 Jan

REPOSITORIES: biostudies-literature