Quantum Fisher Information: Variational principle and simple iterative algorithm for its efficient computation
Quantum Physics
2013-12-06 v1
Abstract
We derive a new variational principle for the quantum Fisher information leading to a simple iterative alternating algorithm, the convergence of which is proved. The case of a fixed measurement, i.e. the classical Fisher information, is also discussed.
Cite
@article{arxiv.1312.1356,
title = {Quantum Fisher Information: Variational principle and simple iterative algorithm for its efficient computation},
author = {Katarzyna Macieszczak},
journal= {arXiv preprint arXiv:1312.1356},
year = {2013}
}
Comments
6 pages, 1 figure