Massimo Blasone, Petr Jizba
Published 1999-10-24Version 1
In the framework of the Closed-Time-Path formalism, we show how topological defects may arise in Quantum Field Theory as result of a localized (inhomogeneous) condensation of particles. We demonstrate our approach on two examples; kinks in the $2D \lambda \psi^{4}$ theory (both at zero and finite temperature) and vortices in the complex $4D \lambda \psi^{4} $ theory.
Comments: 10 pages, 1 figure. To appear in the Proceedings of the 37th International School of Subnuclear Physics, Erice, 29 Aug. - 7 Sep. 1999
O(N) Vector Models in the Limit $g \rightarrow g_c $ and Finite Temperature
Parity breaking in 2+1 dimensions and finite temperature
Bosonization at Finite Temperature and Anyon Condensation
