Essential finite-size effect in the 2D XY model
In: Phys. Rev. B 60, 11761(1999); (1999)
Online
report
Zugriff:
The thermodynamics of the 2D XY model is formulated by a transfer matrix method and analyzed by a density matrix renormalization group. The finite-size scaling and the beta function of the model are studied by the Roomany-Wyld renormalization group theory. It is found that the 2D XY model has an essential finite-size effect and the Berezinskii-Kosterlitz-Thouless transition with the critical temperature TBKT = 0.892 appears in a finite system of 2000 - 3000 spins as a massless to massive transition with the effective critical temperature Tc = 1.07 " 0.01.
Comment: 14 pages including figures, a minor correction
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Essential finite-size effect in the 2D XY model
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Autor/in / Beteiligte Person: | Chung, S. G. |
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Quelle: | Phys. Rev. B 60, 11761(1999); (1999) |
Veröffentlichung: | 1999 |
Medientyp: | report |
DOI: | 10.1103/PhysRevB.60.11761 |
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