Banca de DEFESA: WALKER ANTONIO LINS DE SANTANA

Uma banca de DEFESA de DOUTORADO foi cadastrada pelo programa.
DISCENTE : WALKER ANTONIO LINS DE SANTANA
DATA : 23/09/2019
HORA: 14:00
LOCAL: Instituto de Física, UFBA
TÍTULO:

Quantum field theory by the trail of quantum electrodynamics in Brazil, 1948-1980: the contributions of physicists J. Leite Lopes, T. Maris, and J. A. Swieca

PALAVRAS-CHAVES:

Quantum Field Theory in Brazil; Quantum Electrodynamics in Brazil; Social History of Science in Brazil; Richard Feynman, José Leite Lopes; Theodor Maris; Jorge André Swieca.

PÁGINAS: 241
GRANDE ÁREA: Ciências Humanas
ÁREA: História
SUBÁREA: História das Ciências
RESUMO:

This work aims to construct chapters of Quantum Field Theory (QFT) in Brazil, through the tracks of Quantum Electrodynamics (QED), from 1948 to 1980, involving the contributions of physicists J. Leite Lopes, T. Maris, and J. A. Swieca. The thesis starts with the analysis of the scientific researches carried out by these physicists, based on renormalized QED, which gave support to physics and related sciences. By highlighting the scientific, social, economic, and political contexts, biographical sketches of the aforementioned physicists are made, locating them in these contexts in which they acted. The narrative is focused on the evolution of QFT research, aiming at the practice and development of QED in Brazil, and the ensuing researches which were guided by this QED, especially when applied to fundamental interaction of particles other than the electromagnetic, as the weak interaction. To this end, Brazil had in the beginning of the 1950’s the intellectual and presential support of one of the creators of renormalized QED , R. P. Feynman, who visited Brazilian research institutions several times, such as CBPF and ITA. Next, the motivations, invitations and effective contributions of the three protagonists are analyzed, culminating with a significant understanding of the formation, in its first and next steps, of the research centers at CBPF, USP, UFRGS and PUC, aimed at the development of TQC by the conceptual formalism of EDQ, with emphasis on the contents of symmetry and spontaneous symmetry breaking, which effectively had a Brazilian contribution in the country or abroad, whether performed by Brazilian physicists born or not in the country, or by a foreign physicist acting at a Brazilian university.

MEMBROS DA BANCA:
Interno - 044.222.586-56 - GUSTAVO RODRIGUES ROCHA - UEFS
Interno - 089.007.068-70 - OSVALDO FROTA PESSOA JUNIOR - USP
Interno - 283711 - JOSE FERNANDO MOURA ROCHA
Externo ao Programa - 1740186 - ALEXANDRE LEITE GADELHA
Externo à Instituição - THIAGO HARTZ MAIA - UFRJ