Physics – High Energy Physics – High Energy Physics - Theory
Scientific paper
1995-01-23
Nucl.Phys. B441 (1995) 562-568
Physics
High Energy Physics
High Energy Physics - Theory
latex, 9 pages, no figures
Scientific paper
10.1016/0550-3213(95)00109-6
The one--loop determinant computed around the kink solution in the 3D $\phi^4$ theory, in cylindrical geometry, allows one to obtain the partition function of the interface separating coexisting phases. The quantum fluctuations of the interface around its equilibrium position are described by a $c=1$ two--dimensional conformal field theory, namely a 2D free massless scalar field living on the interface. In this way the capillary wave model conjecture for the interface free energy in its gaussian approximation is proved.
Provero Paolo
Vinti Stefano
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