Equation of state near the endpoint of the critical line

Details Equation of state near the endpoint of the critical line Equation of state near the endpoint of the critical line

1998-06-30

arxiv.org/abs/cond-mat/9806372v1

Nucl.Phys. B562 (1999) 524-546

Physics

Condensed Matter

LaTeX, 22 pages with 7 figures, uses epsf.sty and rotate.sty

Scientific paper

10.1016/S0550-3213(99)00545-3

We discuss first order transitions for systems in the Ising universality class. The critical long distance physics near the endpoint of the critical line is explicitly connected to microscopic properties of a given system. Information about the short distance physics can therefore be extracted from the precise location of the endpoint and non-universal amplitudes. Our method is based on non-perturbative flow equations and yields directly the universal features of the equation of state, without additional theoretical assumptions of scaling or resummations of perturbative series. The universal results compare well with other methods.

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