Level spectroscopy II - application to the Gaussian model -
Kiyohide Nomura, Atsuhiro Kitazawa
Abstract
It was a difficult problem to determine the Gaussian fixed line from the numerical data, because close to the Berezinskii-Kosterlitz-Thouless multicritical point the divergence of the correlation length becomes very slow. Considering the renormalization group behavior, we find an efficient method to determine the Gaussian fixed line.
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