| Texto completo | |
| Autor(es): |
Cucchieri, Attilio
;
Mendes, Tereza
Número total de Autores: 2
|
| Tipo de documento: | Artigo Científico |
| Fonte: | Physical Review Letters; v. 118, n. 19 MAY 9 2017. |
| Citações Web of Science: | 3 |
| Resumo | |
By exploiting the similarity between Bloch's theorem for electrons in crystalline solids and the problem of Landau gauge fixing in Yang-Mills theory on a ``replicated{''} lattice, we show that large-volume results can be reproduced by simulations performed on much smaller lattices. This approach, proposed by Zwanziger {[}Nucl. Phys. B412, 657 (1994)], corresponds to taking the infinite-volume limit for Landau-gauge field configurations in two steps: first for the gauge transformation alone, while keeping the lattice volume finite, and second for the gauge-field configuration itself. The solutions to the gauge-fixing condition are then given in terms of Bloch waves. Applying the method to data from Monte Carlo simulations of pure SU(2) gauge theory in two and three space-time dimensions, we are able to evaluate the Landau-gauge gluon propagator for lattices of linear extent up to 16 times larger than that of the simulated lattice. This approach is reminiscent of the Fisher-Ruelle construction of the thermodynamic limit in classical statistical mechanics. (AU) | |
| Processo FAPESP: | 04/08928-3 - Desenvolvimento e aplicação de métodos computacionais de alto desempenho para análise de sistemas físicos e biológicos |
| Beneficiário: | Luiz Nunes de Oliveira |
| Modalidade de apoio: | Auxílio à Pesquisa - Programa Equipamentos Multiusuários |