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arXiv · 0810.1310

Towards a unified approach to information-disturbance tradeoffs in quantum measurements

Francesco Buscemi·Michal Horodecki
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Abstract

We show that the global balance of information dynamics for general quantum measurements given in [F. Buscemi, M. Hayashi, and M. Horodecki, Phys.Rev.Lett. 100, 210504 (2008)] makes it possible to unify various and generally inequivalent approaches adopted in order to derive information-disturbance tradeoffs in quantum theory. We focus in particular on those tradeoffs, constituting the vast majority of the literature on the subject, where disturbance is defined either in terms of average output fidelity or of entanglement fidelity.

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Francesco Buscemi, Michal Horodecki. 2008-10-07. Towards a unified approach to information-disturbance tradeoffs in quantum measurements. https://doi.org/10.1142/s1230161209000037

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