174 citations · 1.3k across the 43 of their papers we have counts for
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quant-ph2001★ 137 cited
Covariance and Fisher information in quantum mechanics
Denes Petz
Variance and Fisher information are ingredients of the Cramer-Rao inequality. We regard Fisher information as a Riemannian metric on a quantum statistical manifold and choose monot…
quant-ph2001★ 21 cited
Extending the Fisher metric to density matrices
D. Petz, Cs. Sudar
Chentsov studied Riemannian metrics on the set of probability measures from the point of view of decision theory. He proved that up to a constant factor the Fisher information is t…