Källén-Lehmann representation of noncommutative quantum electrodynamics KäLLÉN-lehmann representation of R. BUFALO, T. Cardoso, and B.M. Pimentel
| Autor: | Bufalo, R. [UNESP], Cardoso, T. R. [UNESP], Pimentel, B. M. [UNESP] |
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| Přispěvatelé: | Universidade Estadual Paulista (Unesp) |
| Jazyk: | angličtina |
| Rok vydání: | 2014 |
| Zdroj: | Scopus Repositório Institucional da UNESP Universidade Estadual Paulista (UNESP) instacron:UNESP |
| Popis: | Made available in DSpace on 2018-12-11T16:55:43Z (GMT). No. of bitstreams: 0 Previous issue date: 2014-04-03 Noncommutative (NC) quantum field theory is the subject of many analyses on formal and general aspects looking for deviations and, therefore, potential noncommutative spacetime effects. Within of this large class, we may now pay some attention to the quantization of NC field theory on lower dimensions and look closely at the issue of dynamical mass generation to the gauge field. This work encompasses the quantization of the two-dimensional massive quantum electrodynamics and three-dimensional topologically massive quantum electrodynamics. We begin by addressing the problem on a general dimensionality making use of the perturbative Seiberg-Witten map to, thus, construct a general action, to only then specify the problem to two and three dimensions. The quantization takes place through the Källén-Lehmann spectral representation and Yang-Feldman-Källén formulation, where we calculate the respective spectral density function to the gauge field. Furthermore, regarding the photon two-point function, we discuss how its infrared behavior is related to the term generated by quantum corrections in two dimensions, and, moreover, in three dimensions, we study the issue of nontrivial θ-dependent corrections to the dynamical mass generation. © 2014 American Physical Society. Instituto de Física Teórica (IFT), UNESP, São Paulo State University, Rua Doutor Bento Teobaldo Ferraz 271, Bloco II, Barra Funda CEP 01140-070, São Paulo Instituto de Física Teórica (IFT), UNESP, São Paulo State University, Rua Doutor Bento Teobaldo Ferraz 271, Bloco II, Barra Funda CEP 01140-070, São Paulo |
| Databáze: | OpenAIRE |
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