PÓS-GRADUAÇÃO EM FÍSICA: Recent submissions

  • SILVA, K. V. R. A.; http://lattes.cnpq.br/6320050513779651; SILVA, Kamilla Veronika Rodrigues de Andrade. (BrasilCentro de Ciências e Tecnologia - CCTPÓS-GRADUAÇÃO EM FÍSICAUFCGUniversidade Federal de Campina Grande, 2018-07)
    X-ray surface brightness of galaxy clusters, cosmic opacity and limits on the matter density parameter. In recent years, many tests have been proposed to verify the existence of some cosmic opacity sources in astronomical ...
  • ROCHA, J. C. M.; http://lattes.cnpq.br/5491049946608713; ROCHA, Julio Cesar Marques da. (BrasilCentro de Ciências e Tecnologia - CCTPÓS-GRADUAÇÃO EM FÍSICAUFCGUniversidade Federal de Campina Grande, 2017-07)
    In this thesis we address the issue of inflation driven by a tachyonic field. After a brief immersion in standard cosmological theory, we study aspects of inflationary theory and discover how a tachyon field can be used ...
  • ARAÚJO, I. R. G. D.; ARAÚJO, Illen Ranniery Galdino Dias de. (BrasilCentro de Ciências e Tecnologia - CCTPÓS-GRADUAÇÃO EM FÍSICAUFCGUniversidade Federal de Campina Grande, 2018-09)
    The theory of cosmic inflation has an important place in Modern Cosmology, and the development of the scenario of an inflationary universe has revealed a promising new way o linking Fundamental Physics with observations. ...
  • OGOBOR, E. A.; OGOBOR, Efua Anthony. (BrasilCentro de Ciências e Tecnologia - CCTPÓS-GRADUAÇÃO EM FÍSICAUFCGUniversidade Federal de Campina Grande, )
    On the following nights: (1) 14-15 September 2007 (2) 5 October 2007 (3) 10 October 2007 (4) 5 March 2008 (5) 31 March 2008 and (6) 3 September 2008; Six respective propagating prominent wave fronts which separated the ...
  • SILVA, A. T. N.; http://lattes.cnpq.br/8415250312070527; SILVA, Anderson Tiago Nascimento da. (BrasilCentro de Ciências e Tecnologia - CCTPÓS-GRADUAÇÃO EM FÍSICAUFCGUniversidade Federal de Campina Grande, 2018-05-24)
    The metric obtained by Ba˜nados-Teitelboim-Zanelli (BTZ) was discovered seeing the three-dimensional equivalence between gravitation and the Chern-Simons theory, a topological three-dimensional theory along with the ...
  • BORGES, C. H. A. B.; http://lattes.cnpq.br/0839288021717099; BORGES, Carlos Henrique Araújo Bonfim. (BrasilCentro de Ciências e Tecnologia - CCTPÓS-GRADUAÇÃO EM FÍSICAUFCGUniversidade Federal de Campina Grande, 2017)
    Because of the more satisfactory foundations based on observational data, the Standard Cosmological Model was consistent with the General Relativity Theory. However, due to some difficulties related to the primordial ...
  • CASTRO, J. P. S.; CASTRO, João Paulo de Souza. (BrasilCentro de Ciências e Tecnologia - CCTPÓS-GRADUAÇÃO EM FÍSICAUFCGUniversidade Federal de Campina Grande, 2017-08)
    In this work, we consider electrodynamics violating the Lorentz symmetry with dimension 5 operators. We study with theorists, with modifications in the units: equation of motion, Maxwell’s equations, dispersion relations ...
  • ALVES, A. L.; http://lattes.cnpq.br/9783937217317401; ALVES, André de Lima. (BrasilCentro de Ciências e Tecnologia - CCTPÓS-GRADUAÇÃO EM FÍSICAUFCGUniversidade Federal de Campina Grande, 2017-11)
    The coherent states are observed in a very wide range of physical systems, which enables their study and applications in various areas of science. We will present a brief historical discussion and a small analysis of the ...
  • SILVA, H. L.; http://lattes.cnpq.br/5423110900047998; SILVA, Hebert Leandro. (BrasilCentro de Ciências e Tecnologia - CCTPÓS-GRADUAÇÃO EM FÍSICAUFCGUniversidade Federal de Campina Grande, 2017-02)
    In this work we use the Langragian of the Higgs Abelian model in terms of the noncommutative fields and through the Seiberg-Witten map we expand the fields in terms of the commutative ones, we derive the equations of ...
  • ISSIFU, A.; http://lattes.cnpq.br/5795934328107935; ISSIFU, Adamu. (BrasilCentro de Ciências e Tecnologia - CCTPÓS-GRADUAÇÃO EM FÍSICAUFCGUniversidade Federal de Campina Grande, 2017-07-21)
    In this work we investigate the broad subject of Confinement and De-confinement of Quarks and Gluons in Tachyon Matter. We investigate the behavior of their net static confinement potentials under the conditions temperature ...
  • SILVA, J. R.; SILVA, José Roberto da. (BrasilCentro de Ciências e Tecnologia - CCTPÓS-GRADUAÇÃO EM FÍSICAUFCGUniversidade Federal de Campina Grande, 2016)
    The Mach–Zehnder interferometer (MZI) is an optical apparatus used, e.g., in engineering and also to test the fundamentals of quantum theory. In this work, we investigate different quantum states of the electromagnetic ...
  • SANTOS, V. C. S.; http://lattes.cnpq.br/3246941835824922; SANTOS, Vivianni Cordeiro de Sousa. (BrasilCentro de Ciências e Tecnologia - CCTPÓS-GRADUAÇÃO EM FÍSICAUFCGUniversidade Federal de Campina Grande, 2014-09)
    Experimental data from probes and computational work are ways of detecting and measuring the concentration of dark matter in galaxies and clusters via astrophysical phenomena such as gravitational lensing, Big Bang ...
  • LOURENÇO, J. A. S.; http://lattes.cnpq.br/2124003763280859; LOURENÇO, José Arcênio dos Santos. (BrasilCentro de Ciências e Tecnologia - CCTPÓS-GRADUAÇÃO EM FÍSICAUFCGUniversidade Federal de Campina Grande, 2015-03)
    In this work, we study some influences of unconventional physics, such as the effects of the Lorentz-symmetry violation, on quantum mechanical effects. We analyse the quantum dynamics of a neutral spin- 1/2 particle that ...
  • DAMIEN, T.; DAMIEN, Tristant. (BrasilCentro de Ciências e Tecnologia - CCTPÓS-GRADUAÇÃO EM FÍSICAUFCGUniversidade Federal de Campina Grande, 2013-09-12)
    The motivation of our study lies in the fact that a full understanding of the physical origin of the q-deformation of classical physics is still lacking. It is not clear that there is a standard answer to the q-deformation ...
  • FIRMINO, J. G.; http://lattes.cnpq.br/1871156219030332; FIRMINO, José Gonzales. (BrasilCentro de Ciências e Tecnologia - CCTPÓS-GRADUAÇÃO EM FÍSICAUFCGUniversidade Federal de Campina Grande, 2013)
    A brief introduction to the fundamental ideas of quantum theory is presented. The main attempts to obtain a phase Hermitian operator is mentioned as well as the difficulties related to the number-phase uncertainty. An ...
  • BARROS, N. S.; http://lattes.cnpq.br/1192716127505034; BARROS, Naiara de Souza. (BrasilCentro de Ciências e Tecnologia - CCTPÓS-GRADUAÇÃO EM FÍSICAUFCGUniversidade Federal de Campina Grande, 2016-08)
    This paper presents an analysis of the first two protocols to be proposed for a secure key exchange. The first protocol was implemented by Bennett and Brassard in 1984, presently known as BB84 and the second protocol is ...
  • SANTOS, L. E. A.; http://lattes.cnpq.br/4658267293374624; SANTOS, Luís Eduardo Araújo. (BrasilCentro de Ciências e Tecnologia - CCTPÓS-GRADUAÇÃO EM FÍSICAUFCGUniversidade Federal de Campina Grande, 2014-08-29)
  • ARAÚJO, J. I. V. E.; http://lattes.cnpq.br/3195969137369436; ARAÚJO, José Igor Vasques Eloi. (BrasilCentro de Ciências e Tecnologia - CCTPÓS-GRADUAÇÃO EM FÍSICAUFCGUniversidade Federal de Campina Grande, 2013)
    There are theoretical reasons, inspired in the theories of unification, that allows us to believe in the existence of extra dimensions. In such a scenario, one of the most thought-provoking, according to the theoretical ...
  • SILVA, J. M.; http://lattes.cnpq.br/4019640083888810; SILVA, Jessé de Mello. (BrasilCentro de Ciências e Tecnologia - CCTPÓS-GRADUAÇÃO EM FÍSICAUFCGUniversidade Federal de Campina Grande, 2013-09)
    In this paper we deal with solutions of domain walls in models of coupled real scalar fields involving Z2×Z3 symmetry in a non-supersymmetric model. We will look essentially topological defects that arise naturally due ...
  • LÊMOS, A. S.; http://lattes.cnpq.br/6605073041612113; LÊMOS, Adiel da Silva. (BrasilCentro de Ciências e Tecnologia - CCTPÓS-GRADUAÇÃO EM FÍSICAUFCGUniversidade Federal de Campina Grande, 2014-02-25)
    The dimensionality of spacetime has become a recurring theme of study in the high energy physics research. Initially motivated by the uni cation of fundamental forces of Nature, today is an indispensable and inseparable ...

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