Coexistence Curve Singularities at Critical End Points

Abstract

We report an extensive Monte Carlo study of critical end point behaviour in a symmetrical binary fluid mixture. On the basis of general scaling arguments, singular behaviour is predicted in the diameter of the liquid-gas coexistence curve as the critical end point is approached. The simulation results show clear evidence for this singularity, as well as confirming a previously predicted singularity in the coexistence chemical potential. Both singularities should be detectable experimentally.

9 pages Revtex, 3 figures. To appear in Phys. Rev. Lett

References in corpus (2)

• Multicanonical Ensemble: A New Approach to Simulate First-order Phase Transitions
• Critical point and coexistence curve properties of the Lennard-Jones fluid: A finite-size scaling study

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