caa a22 4500 463197542 CHVBK 20180406164927.0 cr unu---uuuuu 170326e20070201xx s 000 0 eng 10.1007/s10773-006-9239-4 doi (NATIONALLICENCE)springer-10.1007/s10773-006-9239-4 Microlocal Analysis and Renormalization in Finite Temperature Field Theory [Elektronische Daten] [Daniel Franco, José Acebal] We reassess the problem of renormalization in finite temperature field theory (FTFT). A new point of view elucidates the relation between the ultraviolet divergences for T = 0 and T ¬ = 0 theories and makes clear the reason why the ultraviolet behavior keeps unaffected when we consider the FTFT version associated to a given quantum field theory (QFT). The strength of the derivation one lies on the Hörmander's criterion for the existence of products of distributions in terms of the wavefront sets of the respective distributions. The approach allows us to regard the FTFT both imaginary and real time formalism at once in a unified way in the contour ordered formalism. Springer Science + Business Media, Inc., 2006 finite temperature nationallicence renormalization nationallicence wavefront Set nationallicence Franco Daniel Centro de Estudos de Física Teórica, Setor de Física-Matem'atica, Rua Rio Grande do Norte 1053/302, Funcionários, CEP:30130-131, Belo Horizonte, Minas Gerais, Brasil aut Acebal José Centro Federal de Educaçcão Tecnológica de Minas Gerais, Avenida Amazonas 7675, Nova Gameleira, CEP: 30.510-000, Belo Horizonte, Minas Gerais, Brasil aut International Journal of Theoretical Physics Kluwer Academic Publishers-Plenum Publishers; http://www.springer-ny.com 46/2(2007-02-01), 383-398 0020-7748 46:2<383 2007 46 10773 https://doi.org/10.1007/s10773-006-9239-4 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10773-006-9239-4 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Franco Daniel Centro de Estudos de Física Teórica, Setor de Física-Matem'atica, Rua Rio Grande do Norte 1053/302, Funcionários, CEP:30130-131, Belo Horizonte, Minas Gerais, Brasil aut NATIONALLICENCE 700 1- Acebal José Centro Federal de Educaçcão Tecnológica de Minas Gerais, Avenida Amazonas 7675, Nova Gameleira, CEP: 30.510-000, Belo Horizonte, Minas Gerais, Brasil aut NATIONALLICENCE 773 0- International Journal of Theoretical Physics Kluwer Academic Publishers-Plenum Publishers; http://www.springer-ny.com 46/2(2007-02-01), 383-398 0020-7748 46:2<383 2007 46 10773 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer