Coulomb Gas Formulation of Two Dimensional Kosterlitz-Thouless Phase Transition
نویسنده
چکیده
The absence of conventional long range order in the classical two dimensional xy model is introduced. Two main types of excitations of this model, spin wave and vortices, are analyzed in the framework of generalized theory of elasticity. The Hamiltonian is then mapping onto the two dimensional Coulomb gas model and then critical temperature of the Kosterlitz-Thouless transition is located by a renormalization group technique.
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