Supercooled fluid-fluid phase transition in three dimensions from a soft-core potential

Details Supercooled fluid-fluid phase transition in three dimensions from a soft-core potential Supercooled fluid-fluid phase transition in three dimensions from a soft-core potential

2000-05-11

arxiv.org/abs/cond-mat/0005184v2

Physics

Condensed Matter

Soft Condensed Matter

Scientific paper

To study the possibility of a fluid-fluid phase transition, we analyze a three-dimensional soft-core isotropic potential for a one-component system. We utilize two independent numerical approaches, (i) integral equation in the hypernetted-chain approximation and (ii) molecular dynamics simulations, and find for both approaches a fluid-fluid phase transition as well as the conventional gas-liquid critical point. We also study the possible existence of a triple point in the supercooled fluid phase at which three phases---gas, high-density fluid, and low-density fluid---coexist.

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