Quantum fisher metric and uncertainty relations

• Published in: Physics letters. A Vol. 126; no. 4; pp. 223 - 225
• Main Authors: Caianiello, E.R., Guz, W.
• Format: Journal Article
• Language: English
• Published: Amsterdam Elsevier B.V 04.01.1988; Elsevier Science
• Subjects: Classical and quantum physics: mechanics and fields; Exact sciences and technology; Physics; Quantum mechanics

The connection between the recently discovered quantum-mechanical analogue of the Fisher information metric and the uncertainty relations is further investigated, with special emphasis on the role of the quantum counterpart of the Cramér-Rao inequality.