Low-Temperature Expansion of the Free Energy in ASOS Model
classification
✦ hep-lat
keywords
asosmodelenergyfreelow-temperatureseriesabsolute-valueapproximants
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We calculate the low-temperature series of the free energy in absolute-value solid-on-solid (ASOS) model to order $u^{23}$ using finite-lattice method. The property of the obtained series and the behavior of their Pad\'e approximants confirms us that the roughening transition in ASOS model is of Kosterlitz-Thouless type.
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