Bruto Max Pimentel Escobar

• Abstract

  Quantum field theory (QFT) still is the most grounded and elaborated microscopic theory of elementary particles and their interactions. The attention to string theory and hopes related to such a theory as an unified theory of all the interactions, including gravity, do not mean that QFT is completely exhausted at present, that all the principal problem of QFT are already solved, and no re…

  Some actual problems of Quantum Field Theory, AP.TEM
• Vladimir Fainberg | PN Lebedev Physical Institute of Russian Academy of Sciencies - Rússia, AV.EXT
• Andrei Aleksandrovich Bytsenko | St. Petersburg State Polytechnical University - Rússia, AV.EXT

(Only some records are available in English at this moment)

• Abstract

  We have as aim in this project study, in a systematic way, the Generalized Scalar Electrodynamics (GSQED4) from three distinguished outlooks: functional methods, Duffin-Kemmer-Petiau theory (DKP) and Causal Perturbation Theory (CPT). First, we will analyze the effect of the Podolsky term: into the Hamiltonian structure and, by functional methods, at T = 0 and T /= 0, into the Green s func…

  Higher-order field theory: a study of the generalized scalar electrodynamics, BP.PD

• Abstract

  In this project we study nonperturbative aspects of gauge theories in thermodynamic equilibrium in the Matsubara-Fradkin formalism. We will study generalized quantum electrodynamics (GQED), the gauged Thirring model (GTM) and non-Abelian gauge theories, such as quantum chromodynamics (QCD). Our nonperturbative approaches are both the development and application of Fradkin's modified pertu…

  Nonperturbative Aspects of Gauge Theories in Thermodynamic Equilibrium in the Matsubara-Fradkin Formalism, BP.PD

• Abstract

  In the present research project we will study and explore general features of emergent modified theories of gravity which involve higher-derivatives terms (quadratic in curvature). There are numerous reasons that indicate that General Relativity is in fact an incomplete theory; in particular, its incompatibility with the quantum theory. Therefore, within the framework of field theory, as …

  A Hamiltonian analysis of modified theories of gravity, BE.EP.PD