| Revista: | Brazilian journal of physics |
| Base de datos: | PERIÓDICA |
| Número de sistema: | 000379530 |
| ISSN: | 0103-9733 |
| Autors: | Casana, R1 Pimentel, B.M2 Zambrano, G.E.R3 |
| Institucions: | 1Universidade Federal do Maranhao, Departamento de Fisica, Sao Luis, Maranhao. Brasil 2Universidade Estadual Paulista "Julio de Mesquita Filho", Instituto de Fisica Teorica, Sao Paulo. Brasil 3Universidad de Nariño, Departamento de Física, San Juan de Pasto, Nariño. Brasil |
| Any: | 2014 |
| Període: | Ago |
| Volum: | 44 |
| Número: | 4 |
| Paginació: | 398-409 |
| País: | Brasil |
| Idioma: | Inglés |
| Tipo de documento: | Artículo |
| Enfoque: | Experimental, analítico |
| Resumen en inglés | We study the scalar electrodynamics (SQED4) and the spinor electrodynamics (QED4) in the null-plane formalism. We follow Dirac’s technique for constrained systems to analyze the constraint structure in both theories in detail. We impose the appropriate boundary conditions on the fields to fix the hidden subset first class constraints that generate improper gauge transformations and obtain a unique inverse of the second-class constraint matrix. Finally, choosing the null-plane gauge condition, we determine the generalized Dirac brackets of the independent dynamical variables, which via the correspondence principle give the (anti)-commutators for posterior quantization |
| Disciplines | Física y astronomía |
| Paraules clau: | Física de partículas y campos cuánticos, Electrodinámica escalar, Coordenadas de planos nulos, Análisis de restricción, Corchetes Dirac |
| Keyword: | Physics and astronomy, Particle physics and quantum fields, Scalar electrodynamics, Null-plane coordinates, Constraint analysis, Dirac brackets |
| Text complet: | Texto completo (Ver PDF) |
