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quant-ph2025
Non-Hermitian effects on the quantum parameter estimation in pseudo-Hermitian systems
L. H. Wei, H. J. Xing, L. B. Fu +1
Quantum Fisher Information (QFI) is a fundamental quantity in quantum parameter estimation theory, characterizing the ultimate precision bound of parameter estimation. In this work…
quant-ph2014★ 49 cited
Representation of Berry phase by the trajectories of Majorana stars
H. D. Liu, L. B. Fu
The Majorana's stellar representation, which represents the evolution of a quantum state with the trajectories of the Majorana stars on a Bloch sphere, provides an intuitive way to…