Quantum Fisher information on its own is not a valid measure of the coherence

Hyukjoon Kwon, Kok Chuan Tan, Seongjeon Choi, Hyunseok Jeong · Results in Physics · 2018

We show that contrary to the claim in Feng and Wei (2017), the quantum Fisher information itself is not a valid measure of the coherence based on the resource theory because it can increase via an incoherent operation.

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