TY - JOUR A1 - Aldaya Valverde, Víctor AU - Navarro, Miguel AU - Calixto Molina, Manuel T1 - The Electromagnetic and Proca Fields Revisited: a Unified Quantization Y1 - 1997 UR - http://hdl.handle.net/10317/513 UR - arXiv:hep-th/9609083v1 AB - Quantizing the electromagnetic field with a group formalism faces the difficulty of how to turn the traditional gauge transformation of the vector potential, Aμ(x) → Aμ(x) + ∂μϕ(x), into a group law. In this paper it is shown that the problem can be solved by looking at gauge transformations in a slightly different manner which, in addition, does not require introducing any BRST-like parameter. This gauge transformation does not appear explicitly in the group law of the symmetry but rather as the trajectories associated with generalized equations of motion generated by vector fields with null Noether invariants. In the new approach the parameters of the local group, U(1)(~x, t), acquire dynamical content outside the photon mass shell, a fact which also allows a unified quantization of both the electromagnetic and Proca fields. KW - Matemática Aplicada KW - Campos electromagnéticos Proca KW - Cuantización unificada LA - eng PB - World Scientific Publishing Company ER -