ar X iv : c on d - m at / 0 21 22 77 v 1 1 2 D ec 2 00 2 Finite - size effects on the thermal conductivity of 4 Henear T λ
نویسنده
چکیده
We present results of a renormalization-group calculation of the thermal conductivity of confined He in a L ×∞ geometry above and at Tλ within model F with Dirichlet boundary conditions for the order parameter. We assume a heat flow parallel to the boundaries which implies Neumann boundary conditions for the entropy density. No adjustable parameters other than those known from bulk theory and static finite-size theory are used. Our theoretical results are compared with experimental data by Kahn and Ahlers.
منابع مشابه
ar X iv : g r - qc / 0 41 21 17 v 1 2 3 D ec 2 00 4 A quantum mass - spectrum of Kerr black hole : superstrings
Using thermal quantization of geodesics confined under horizons and reasonable conjecture on massless modes, we evaluate quantum spectrum of Kerr black hole masses compatible with superstring symmetries.
متن کاملar X iv : 0 71 2 . 13 28 v 1 [ m at h . R A ] 9 D ec 2 00 7 When Are Torsionless Modules Projective ?
In this paper, we study the problem when a finitely generated torsionless module is projective. Let Λ be an Artinian local algebra with radical square zero. Then a finitely generated torsionless Λ-module M is projective if Ext Λ (M,M) = 0. For a commutative Artinian ring Λ, a finitely generated torsionless Λ-module M is projective if the following conditions are satisfied: (1) Ext Λ (M,Λ) = 0 f...
متن کاملar X iv : m at h / 03 12 22 1 v 1 [ m at h . R A ] 1 1 D ec 2 00 3 three talks on noncommutative geometry
متن کامل
ar X iv : c on d - m at / 0 30 35 00 v 1 2 4 M ar 2 00 3 From nonwetting to prewetting : the asymptotic behavior of 4 He drops on alkali substrates
We investigate the spreading of 4 He droplets on alkali surfaces at zero temperature, within the frame of Finite Range Density Functional theory. The equilibrium configurations of several 4 He N clusters and their asymptotic trend with increasing particle number N , which can be traced to the wetting behavior of the quantum fluid, are examined for nanoscopic droplets. We discuss the size effect...
متن کامل