Dresden 2003 – wissenschaftliches Programm

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DY: Dynamik und Statistische Physik

DY 46: Poster

DY 46.43: Poster

Donnerstag, 27. März 2003, 15:30–18:00, P1

Fluctuation Pressure of a Membrane Between Walls Through Six Loops — •Boris Kastening — Institut für Theoretische Physik, Freie Universität Berlin, Arnimallee 14, D-14195 Berlin

Earlier four- [1] and five-loop [2] calculations of the fluctuation pressure of a fluid membrane between two infinite walls are extended to six loops [3]. Variational perturbation theory is used to extract the hard-wall limit from perturbative results obtained with a smooth potential. Our results confirm that the best available Monte Carlo data underestimate the pressure beyond their reported error bars.

[1] M.Bachmann, H.Kleinert, A.Pelster, Phys.Lett.A261, 127 (1999) [cond-mat/9905397].

[2] B.Kastening, Phys.Rev.E66, 061102 (2002), [cond-mat/0205073].

[3] B.Kastening, in preparation.