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Автор Kiyohide Nomura
Автор Atsuhiro Kitazawa
Дата выпуска 1998-09-11
dc.description The Berezinskii-Kosterlitz-Thouless (BKT) transition, the transition of the two-dimensional sine-Gordon model, plays an important role in low-dimensional physics. We relate the operator content of the BKT transition to that of the SU(2) Wess-Zumino-Witten model, using twisted boundary conditions. With this method, in order k - 1 to determine the BKT critical point, we can use the level crossing of the lower excitations instead of those for the periodic boundary case, thus the convergence to the transition point is highly improved. We verify the efficiency of this method by applying it to the S = 1, 2 spin chains.
Формат application.pdf
Издатель Institute of Physics Publishing
Название symmetry of the BKT transition and twisted boundary condition
Тип paper
DOI 10.1088/0305-4470/31/36/008
Print ISSN 0305-4470
Журнал Journal of Physics A: Mathematical and General
Том 31
Первая страница 7341
Последняя страница 7362
Выпуск 36

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