Comment on "Unified view of quantum correlations and quantum coherence"

TL;DR

This paper challenges a previous claim by demonstrating that the local measurement causing maximum coherence loss is not always aligned with the basis defining the system's coherence, specifically for quantum-incoherent states.

Contribution

It provides a counterexample to prior assertions, clarifying the relationship between local measurements and coherence loss in quantum-incoherent states.

Findings

The maximal coherence loss measurement is not always the local basis basis.

Counterexample for quantum-incoherent states.

Clarifies the measurement basis-coherence relationship.

Abstract

We show that contrary to what it is claimed in Phys. Rev. A \textbf{94}, 022329 (2016), in general the local projective measurement that induces maximal coherence loss is \textit{not} the projection onto the local basis that defines the coherence of the system, at least for all quantum-incoherent states.