Dynamics of Weak First Order Phase Transitions

Details Dynamics of Weak First Order Phase Transitions Dynamics of Weak First Order Phase Transitions

1994-03-18

arxiv.org/abs/hep-ph/9403310v1

Phys.Rev.Lett. 73 (1994) 3495-3498

Physics

High Energy Physics

High Energy Physics - Phenomenology

11 pages, 4 figures in uuencoded compressed file (see instructions in main text), RevTeX, DART-HEP-94/01

Scientific paper

10.1103/PhysRevLett.73.3495

The dynamics of weak vs. strong first order phase transitions is investigated numerically for 2+1 dimensional scalar field models. It is argued that the change from a weak to a strong transition is itself a (second order) phase transition, with the order parameter being the equilibrium fractional population difference between the two phases at the critical temperature, and the control parameter being the coefficient of the cubic coupling in the free-energy density. The critical point is identified, and a power law controlling the relaxation dynamics at this point is obtained. Possible applications are briefly discussed.

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