Física de Partículas no ensino médio Parte II: Física Nuclear

Departamento de Física de Partículas

A brief review of the development of Chern-Simons gauge theory since its relation to knot theory was discovered in 1988 is presented. The presentation is done guided by a dictionary which relates knot theory concepts to quantum field theory ones. From the basic objects in both contexts the quantities leading to knot and link invariants are introduced and analyzed. The quantum field theory appro...

Departament Física i Enginyeria Nuclear, FIB, UPC,

1 Instituto de Física, Universidade Federal Fluminense,

It is known now that chiral symmetry restoration requires the meson-nucleon coupling to be density dependent in nuclear-matter mean-field models. We further show that quite generally, the quark and gluon condensates in medium are related to the trace of energy-momentum tensor of nuclear matter and in these models the incompressibility, K, must be less than thrice the chemical potential, μ. In t...

Requisitos ao Código: Uma Proposta para o Ensino da Engenharia de Software no Ensino Médio

Resumo. Esse artigo apresenta uma proposta educacional visando o ensino da Engenharia de Software para alunos do ensino médio, mais precisamente, ensinando como ocorre o processo de desenvolvimento de software dos requisitos ao código. Para tanto, a metodologia fundamenta-se no uso de plataformas de ensino inovadoras e robótica educacional, com as quais são explorados recursos lúdicos, temas mu...

Departamento de Física, Universidade Federal do Piauí, 64049-550, Teresina

The zero-temperature Glauber dynamics is used to investigate the persistence probability P (t) in the Potts model with Q = 3, 4, 5, 7, 9, 12, 24, 64, 128, 256, 512, 1024, 4096, 16384,..., 230 states on directed and undirected Barabási-Albert networks and Erdös-Rényi random graphs. In this model it is found that P (t) decays exponentially to zero in short times for directed and undirected ErdösR...