Research output: Contribution to conference › Paper › peer-review
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.
Original language | English |
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Pages | 41-58 |
Number of pages | 18 |
State | Published - 2017 |
Event | 10th International Conference on Chaotic Modeling and Simulation, CHAOS 2017 - Barcelona, Spain Duration: 30 May 2017 → 2 Jun 2017 |
Conference | 10th International Conference on Chaotic Modeling and Simulation, CHAOS 2017 |
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Country/Territory | Spain |
City | Barcelona |
Period | 30/05/17 → 2/06/17 |
ID: 73725845