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We derive a new variational principle for the quantum Fisher information leading to a simple iterative alternating algorithm, the convergence of which is proved.
R. W. Yeung A First Course in Information Theory (Information Technology: Transmission, Processing and Storage)
2006
Earlier work this paper cites.
R. Demkowicz-Dobrzanski, Beyond quantum Fisher information: optimal phase estimation with arbitrary a priori knowledge, Phys. Rev. A
2011
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