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From the description of the non-perturbative regime of QCD to the application of quantum field theory to condensed matter physics

Grant number: 17/01142-4
Support Opportunities:Research Grants - Visiting Researcher Grant - International
Duration: October 01, 2017 - July 31, 2018
Field of knowledge:Physical Sciences and Mathematics - Physics - Elementary Particle Physics and Fields
Principal Investigator:Tobias Frederico
Grantee:Tobias Frederico
Visiting researcher: Orlando Olavo Aragão Aleixo e Neves de Oliveira
Visiting researcher institution: Universidade de Coimbra (UC), Portugal
Host Institution: Divisão de Ciências Fundamentais (IEF). Instituto Tecnológico de Aeronáutica (ITA). Ministério da Defesa (Brasil). São José dos Campos , SP, Brazil
Associated research grant:13/26258-4 - Superdense matter in the universe, AP.TEM


In this project we intend to deepen the works where we studied the quark-gluon vertex combining results from the continuum formulation of QCD (Dyson-Schwinger, Slavnov-Taylor identities) with results from Quantum Chromodynamics in a space-time lattice. The aim is to achieve a more realistic description of this fundamental vertex in QCD and in particular to investigate how it depends on the quark flavor and their relation to the confinement and the breaking of chiral symmetry. On the other hand, we also propose to deepen the study of the electronic properties of graphene and bigraphene-type materials with relativistic effective models in Quantum Field Theory. One of the objectives of this study is to understand how the deformation of the material is reflected either in its electronic properties, as in their optical properties. We intend with this project to maintain the scientific cooperation that we have with Prof. Tobias Frederico and to strengthen the existing collaboration between the Physics Center of the University of Coimbra and the Technological Institute of Aeronautics. (AU)

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Scientific publications (6)
(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)
DUDAL, DAVID; OLIVEIRA, ORLANDO; SILVA, PAULO J.. High precision statistical Landau gauge lattice gluon propagator computation vs. the Gribov-Zwanziger approach. ANNALS OF PHYSICS, v. 397, p. 351-364, . (17/01142-4)
OLIVEIRA, ORLANDO; FREDERICO, T.; DE PAULA, W.; DE MELO, J. P. B. C.. Exploring the quark-gluon vertex with Slavnov-Taylor identities and lattice simulations. EUROPEAN PHYSICAL JOURNAL C, v. 78, n. 7, . (17/01142-4, 17/05660-0)
LEME, R.; OLIVEIRA, O.; KREIN, G.. Approximate dual representation for Yang-Mills SU(2) gauge theory. EUROPEAN PHYSICAL JOURNAL C, v. 78, n. 8, . (13/01907-0, 17/01142-4)
OLIVEIRA, ORLANDO; DE PAULA, WAYNE; FREDERICO, TOBIAS; DE MELO, J. P. B. C.. The quark-gluon vertex and the QCD infrared dynamics. EUROPEAN PHYSICAL JOURNAL C, v. 79, n. 2, . (17/01142-4, 17/05660-0)
OLIVEIRA, ORLANDO; SILVA, PAULO J.; SKULLERUD, JON-IVAR; STERNBECK, ANDRE. Quark propagator with two flavors of O(a)-improved Wilson fermions. PHYSICAL REVIEW D, v. 99, n. 9, p. 13-pg., . (17/01142-4)
OLIVEIRA, ORLANDO; SILVA, PAULO J.; SKULLERUD, JON-IVAR; STERNBECK, ANDRE. Quark propagator with two flavors of O(a)-improved Wilson fermions. Physical Review D, v. 99, n. 9, . (17/01142-4)

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