Montenegro, David [UNESP]2020-12-122020-12-122020-02-10International Journal of Modern Physics A, v. 35, n. 4, 2020.0217-751Xhttp://hdl.handle.net/11449/200175In this work, we consider the generalized quantum electrodynamics proposed by Podolsky in Heisenberg picture via Källén methodology. We investigate the effects of higher-order derivatives to understand the qualitative and quantitative aspects of vacuum polarization. In addition, the most general structure of induced current and polarization tensor that emerge naturally by a perturbative scheme à la Källén is also obtained. Afterward, we discuss the physical implication of charge renormalization in the perspective of unitary and stable Podolsky theory.engHeisenberg pictureKällénno-mixing gaugePodolsky electrodynamicsvacuum polarizationArtigo10.1142/S0217751X205001282-s2.0-85081707001