title: Comment on "Spontaneous liquid-liquid phase separation of water".
abstract: Yagasaki et al. [Phys. Rev. E 89, 020301 (2014)] present results from a molecular dynamics trajectory illustrating coarsening of ice, which they interpret as evidence of transient coexistence between two distinct supercooled phases of liquid water. We point out that neither two distinct liquids nor criticality are demonstrated in this simulation study. Instead, the illustrated trajectory is consistent with coarsening behaviors analyzed and predicted in earlier work by others.
authors: Princeton Center for Theoretical Science, Princeton University, Princeton, New Jersey 08544, USA.
authors: David T
authors: DT
authors: Limmer
authors: Department of Chemistry, University of California, Berkeley, California 94720, USA.
authors: David
authors: D
authors: Chandler