Результаты исследований: Материалы конференций › материалы › Рецензирование
Directed bond percolation process is an important model in statistical physics. It provides a paramount example of non-equilibrium phase transitions. By now its universal properties are known only up to the second-order of the perturbation theory. Here, our aim is to put forward a numerical technique with anomalous dimensions of directed percolation to the higher orders of perturbation theory. It is based on the perturbative renormalization scheme in deviation from the upper critical dimension, ϵ = 4-d. Universal quantities are expressed in terms of irreducible renormalized Feynman diagrams and there is no need for calculation of renormalization constants. A numerical evaluation of integrals has been performed using the Vegas algorithm from the Cuba library. Whitin the framework, the anomalous dimensions are computed up to three-loop order in ϵ.
Язык оригинала | английский |
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Страницы | 41-58 |
Число страниц | 18 |
Состояние | Опубликовано - 2017 |
Событие | 10th International Conference on Chaotic Modeling and Simulation, CHAOS 2017 - Barcelona, Испания Продолжительность: 30 мая 2017 → 2 июн 2017 |
конференция | 10th International Conference on Chaotic Modeling and Simulation, CHAOS 2017 |
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Страна/Tерритория | Испания |
Город | Barcelona |
Период | 30/05/17 → 2/06/17 |
ID: 73725845