Exact thermodynamic Casimir forces for an interacting three-dimensional model system in film geometry with free surfaces

H. W. Diehl, Daniel Grüneberg, Martin Hasenbusch +3

The limit n to infinity of the classical O(n) phi^4 model on a 3d film with free surfaces is studied. Its exact solution involves a self-consistent 1d Schrödinger equation, which i…