Περίληψη:
First-order phase transitions that proceed via nucleation of bubbles are
described by the homogeneous nucleation theory of Langer. The nucleation
rate is one of the most interesting parameters of these transitions, In
previous works we have computed nucleation rates with two different
methods. (A) employing coarse-grained potentials; (B) by means of a
saddle-point approximation, using dimensionally regularized field
theory. In this Letter we compare the results of the two approaches in
order to test their reliability and to determine the regions of
applicability, We find a very good agreement. (C) 2000 Elsevier Science
B.V. All rights reserved.
Συγγραφείς:
Munster, G
Strumia, A
Tetradis, N
