2016/03/31 by Xiao-Dong Yu, Da-Jian Zhang, C. L. Liu +1 · 1 citation
Physics and Astronomy · #quant-ph
paper · pdf · doi:10.1103/physreva.93.060303
published as Phys. Rev. A 93, 060303(R), 2016 · 5 pages, no figures, accepted by Physical Review A as Rapid Communication
arxiv created 2016/06/14 · arxiv updated 2016/07/20
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.