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DC Field | Value | Language |
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dc.contributor.author | De Polsi Astapenco, Gonzalo | - |
dc.contributor.author | Balog, Ivan | - |
dc.contributor.author | Tissier, Matthieu | - |
dc.contributor.author | Wschebor, Nicolás | - |
dc.date.accessioned | 2022-06-13T13:23:12Z | - |
dc.date.available | 2022-06-13T13:23:12Z | - |
dc.date.issued | 2020 | - |
dc.identifier.citation | De Polsi Astapenco, G, Balog, I, Tissier, M [y otro]. "Precision calculation of critical exponents in the O(N) universality classes with the nonperturbative renormalization group " [Preprint]. Publicado en: Physical Review E, 2020, 101(4): 042113 DOI: 10.1103/PhysRevE.101.042113 | es |
dc.identifier.uri | https://hdl.handle.net/20.500.12008/31934 | - |
dc.description | Versión permitida: preprint | es |
dc.description.abstract | We compute the critical exponents ν, η and ω of O(N) models for various values of N by implementing the derivative expansion of the nonperturbative renormalization group up to next-to-next-to-leading order [usually denoted O(∂4)]. We analyze the behavior of this approximation scheme at successive orders and observe an apparent convergence with a small parameter, typically between 19 and 14, compatible with previous studies in the Ising case. This allows us to give well-grounded error bars. We obtain a determination of critical exponents with a precision which is similar or better than those obtained by most field-theoretical techniques. We also reach a better precision than Monte Carlo simulations in some physically relevant situations. In the O(2) case, where there is a long-standing controversy between Monte Carlo estimates and experiments for the specific heat exponent α, our results are compatible with those of Monte Carlo but clearly exclude experimental values. | es |
dc.format.mimetype | application/pdf | es |
dc.language.iso | en | es |
dc.rights | Las obras depositadas en el Repositorio se rigen por la Ordenanza de los Derechos de la Propiedad Intelectual de la Universidad de la República.(Res. Nº 91 de C.D.C. de 8/III/1994 – D.O. 7/IV/1994) y por la Ordenanza del Repositorio Abierto de la Universidad de la República (Res. Nº 16 de C.D.C. de 07/10/2014) | es |
dc.subject | Condensed matter - statistical mechanics | es |
dc.subject | High energy physics - theory | es |
dc.title | Precision calculation of critical exponents in the O(N) universality classes with the nonperturbative renormalization group | es |
dc.type | Preprint | es |
dc.contributor.filiacion | De Polsi Astapenco Gonzalo, Universidad de la República (Uruguay). Facultad de Ciencias. Instituto de Física. | - |
dc.contributor.filiacion | Balog Ivan | - |
dc.contributor.filiacion | Tissier Matthieu | - |
dc.contributor.filiacion | Wschebor Nicolás, Universidad de la República (Uruguay). Facultad de Ingeniería. Instituto de Física | - |
dc.rights.licence | Licencia Creative Commons Atribución - No Comercial - Sin Derivadas (CC - By-NC-ND 4.0) | es |
Appears in Collections: | Publicaciones académicas y científicas - Facultad de Ciencias |
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