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

  • Volker Dohm
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.

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تاریخ انتشار 2002