Supercooled Water: Simulations, Theory and Experiments in No Man's Land, and the Liquid-Liquid Critical Point
No man's land is the region in the metastable phase diagram of water where it is very difficult to do experiments on liquid water because of homogeneous nucleation to the crystal. Nonetheless, there have been a few recent ingenious experiments, involving X-ray scattering, diffusion, compressibility, and IR spectra. The possibility of a liquid-liquid critical point in no man’s land has been controversial. Using our simulation model with explicit three-body interactions, we find evidence for such a second critical point, which appears to be consistent with all of the existing experiments. We argue that this critical point is actually responsible for some of the anomalous properties of ambient liquid water.
Colloq flyer 10-11 Skinner