Dynamic anomalies of fluids with isotropic doubled-ranged potential

Using molecular dynamics simulations we investigate the ability of an analytical three-dimensional double well in reproducing dynamic anomalies found experimentally and by computational models in liquid water. We find anomalous behavior in the stable region of the phase diagram if the outer minimum is deeper than the inner minimum. In the case of a deeper inner minimum, anomalous behavior is also present but inside the unstable region