Perfect lattice action for asymptotically free theories
We present a method to obtain lattice actions which are free of cut-off effects even on coarse grained lattices. For the d = 2 non-linear σ-model the corresponding classical equations of motions have scale invariant soliton solutions, and a topological charge can be defined with the same basic prope...
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| Published in | Nuclear physics. Section B, Proceedings supplement Vol. 34; pp. 513 - 515 |
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| Main Author | |
| Format | Journal Article |
| Language | English |
| Published |
Elsevier B.V
01.04.1994
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| Online Access | Get full text |
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| Summary: | We present a method to obtain lattice actions which are free of cut-off effects even on coarse grained lattices. For the
d = 2 non-linear σ-model the corresponding classical equations of motions have scale invariant soliton solutions, and a topological charge can be defined with the same basic properties as in the continuum theory. |
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| ISSN: | 0920-5632 1873-3832 |
| DOI: | 10.1016/0920-5632(94)90433-2 |