Balog, János and Niedermayer, Ferenc and Weisz, P. (2013) Symanzik effective actions in the large N limit. JOURNAL OF HIGH ENERGY PHYSICS, 2013 (8). ISSN 1126-6708
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Abstract
Symanzik effective actions, conjectured to describe lattice artifacts, are de- termined for a class of lattice regularizations of the non-linear O(N ) sigma model in two dimensions in the leading order of the 1/N -expansion. The class of actions considered in- cludes also ones which do not have the usual classical limit and are not (so far) treatable in the framework of ordinary perturbation theory. The effective actions obtained are shown to reproduce previously computed lattice artifacts of the step scaling functions defined in finite volume, giving further confidence in Symanzik’s theory of lattice artifacts.
| Item Type: | Article |
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| Uncontrolled Keywords: | lattice quantum field theory; CONTINUUM-LIMIT; Nonperturbative effects; Field theories in lower dimensions; LATTICE GAUGE-THEORIES; sigma models; sigma models; COMPUTE; |
| Subjects: | Q Science / természettudomány > QC Physics / fizika |
| SWORD Depositor: | MTMT SWORD |
| Depositing User: | MTMT SWORD |
| Date Deposited: | 19 Jun 2024 14:10 |
| Last Modified: | 19 Jun 2024 14:10 |
| URI: | https://real.mtak.hu/id/eprint/197918 |
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