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Quantum Fisher information of a two-level system controlled by non-Hermitian operation under depolarization.
Yan-Yi Wang
Mao-Fa Fang
Published in:
Quantum Inf. Process. (2020)
Keyphrases
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fisher information
information geometry
euclidean space
noise level
probability density function
geodesic distance
positive definite
multidimensional scaling
estimation error
free energy
feature space
denoising
projective transformations