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Scaling Function for the Critical Specific Heat in a Confined Geometry : Spherical Limit
The scaling function for the critical specific heat is obtained exactly for
temperatures above the bulk transition temperature by working in the spherical
limit. Generalization of the function to arbitrary (the specific heat
exponent), gives an excellent account of the experimental data of Mehta and
Gasparini near the superfluid transition.Comment: 11 pages (LaTeX), 2 figures (PostScript
Frequency Dependent Viscosity Near the Critical Point: The Scale to Two Loop Order
The recent accurate measurements of Berg, Moldover and Zimmerli of the
viscoelastic effect near the critical point of xenon has shown that the scale
factor involved in the frequency scaling is about twice the scale factor
obtained theoretically. We show that this discrepancy is a consequence of using
first order perturbation theory. Including two loop contribution goes a long
way towards removing the discrepancy.Comment: No of pages:7,Submitted to PR-E(Rapid Communication),No of EPS
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