Measure-independent freezing of quantum coherence

Xiao‐Dong Yu, Da-Jian Zhang, C. L. Liu, D. M. Tong · Physical Review A · 2016

We find that all measures of coherence are frozen for an initial state in a strictly incoherent channel if and only if the relative entropy of coherence is frozen for the state. Our finding reveals the existence of measure-independent freezing of coherence, and provides an entropy-based dynamical condition in which the coherence of an open quantum system is totally unaffected by noise.

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