March 15, 2024Open Access

Mutual Information Bounded by Fisher Information

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The upper bound for mutual information is linked to Fisher information, leading to novel implications.
Key metric: mutual information bounds assist in Bayesian quadratic cost estimations which are vital for strategic planning.
This analysis employs case studies in quantum phase estimation, adapting known Fisher information bounds amid noise scenarios effectively for practical use in quantum contexts across both continuous and discrete systems alike, illustrating its relevance in communication strategies and error handling in quantum networks.

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This work derives a mutual information upper bound using Fisher information, implying new insights for quantum strategies.

Górecki et al. (2024) studied this question.

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