Comment on "Quantifying quantum coherence with quantum Fisher information"
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🪐 quant-ph
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coherencequantumfisherinformationbecauseclaimcommentcontrary
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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.
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