FINITE-GEOMETRY SPECIFIC-HEAT SCALING FUNCTION NEAR THE LAMBDA-TRANSITION

Using a technique due to Nicoll for studying the wave-number-dependent specific heat in the bulk geometry, we calculate for temperatures abo ve the lambda point the two-loop specific-heat scaling function for th e parallel plate geometry with Dirichlet boundary conditions. We work with the logarithmic specific heat for simplicity, since for the actua l superfluid transition the exponent cu is very close to zero. The agr eement with the recent data is exhibited.