Critical line near the zero-density critical point of the Kosterlitz-Thouless transition |
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| Authors: | A. Alastuey F. Cornu |
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| Affiliation: | (1) Laboratoire de Physique, URA 1325 du CNRS, Ecole Normale Supérieure de Lyon, F-69364 Lyon, France |
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| Abstract: | Using low-fugacity expansions, we study the exact behavior of the Kosterlitz-Thouless critical line near the zero-density critical point. We show that the critical temperature deviates from its zero-density value by a term proportional to the square root of the density. |
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| Keywords: | Kosterlitz-Thouless transition Coulomb gas fugacity expansions critical line |
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