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Covariance and Fisher information in quantum mechanics

✍ Scribed by Petz, Dénes


Book ID
118143241
Publisher
Institute of Physics
Year
2002
Tongue
English
Weight
107 KB
Volume
35
Category
Article
ISSN
0305-4470

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Relation between the covariance and Fish
✍ Abram Kagan; Zinoviy Landsman 📂 Article 📅 1999 🏛 Elsevier Science 🌐 English ⚖ 91 KB

It is proved that for any two positive deÿnite Hermitian m × m matrices I and V subject to I ¿V -1 there exists an m-variate random vector X with V as its covariance matrix and I its matrix of Fisher information.