We show that contrary to the claim in Sci. Rep. 7, 15492 (2017), the quantum Fisher information itself is not a valid coherence measure based on the resource theory of coherence because it can increase via an incoherent operation.
Cite
@article{arxiv.1711.10110,
title = {Comment on "Quantifying quantum coherence with quantum Fisher information"},
author = {Hyukjoon Kwon and Kok Chuan Tan and Seongjeon Choi and Hyunseok Jeong},
journal= {arXiv preprint arXiv:1711.10110},
year = {2017}
}