3 papers
quant-ph2026
Experimental realization of a photonic weighted graph state for quantum metrology
Unathi Skosana, Byron Alexander, Changhyoup Lee +1
Quantum metrology seeks to push the boundaries of measurement precision by harnessing quantum phenomena. Conventional methods often rely on maximally entangled resources, with stat…
quant-ph2025
Unified strategy for non-invertible Fisher information matrix in quantum metrology
Min Namkung, Changhyoup Lee, Hyang-Tag Lim
In quantum multi-parameter estimation, the precision of estimating unknown parameters is bounded by the Cramer-Rao bound (CRB), defined via the inverse of the Fisher information ma…
quant-ph2025
Distributed quantum sensing with multi-mode states
Dong-Hyun Kim, Seongjin Hong, Yong-Su Kim +4
Distributed quantum sensing, which estimates a global parameter across distant nodes, has attracted significant interest for applications such as quantum imaging, sensor networks,…