57 citations · 268 across the 24 of their papers we have counts for
22 papers · 1 filter
Charge and Spin Currents in a Lower-Dimensional Supersymmetric Model in Presence of Vortices
Cristine N. Ferreira, J. P. S. Alves e Silva, J. A. Helayel Neto +1
We investigate charge and spin currents that may appear in some materials, considering the possible couplings and the symmetries of a field-theoretical model presented here. We ins…
On the Thermodynamical Black Hole Stability in the Space-time of a Global Monopole in -Gravity
Francisco Bento Lustosa, Maria Emilia Xavier Guimarães, Cristine Nunes Ferreira +2
In this work, we re-assess a class of black hole solutions in a global monopole spacetime in the framework of an -gravity model. Our main line of investigation consists in co…
Torsion Effects and LLG Equation
Cristine N. Ferreira, Cresus F. L. Godinho, J. A. Helayël Neto
Based on the non-relativistic regime of the Dirac equation coupled to a torsion pseudo-vector, we study the dynamics of magnetization and how it is affected by the presence of tors…
Thermodynamical Analysis of a Black Hole with a Global Monopole Within a Class of a f(R) Gravity
F. B. Lustosa, M. E. X. Guimarães, Cristine N. Ferreira +1
We analyze the thermodynamics of a black hole in a region that contains a global monopole in the framework of a particular class of a f(R) gravity. Specifically, we study the case…
BPS solution for eleven-dimensional supergravity with a conical defect configuration
Cristine N. Ferreira
In this work, we found the solution for the field equations of eleven-dimensional supergravity with a BPS conical topological defect configuration. We chose the solutions that corr…
A conical deficit in the AdS4/CFT3 correspondence
C. A. Ballon Bayona, Cristine N. Ferreira, V. J. Vasquez Otoya
Inspired by the AdS/CFT correspondence we propose a new duality that allow the study of strongly coupled field theories living in a 2+1 conical space-time. Solving the 4-d Einstein…
Vortex Formation in a , N=2, D=3 Supersymmetric Gauge Model
C. N. Ferreira, J. A. Helayël Neto, A. A. V. Paredes
In this work, we study a model that results from a dimensional reduction of the N=1-D=4 supersymmetric version of the Cremer-Scherk-Kalb-Ramond model…
D-dimensional Randall-Sundrum models from Brans-Dicke theory and Kaluza-Klein modes
C. A. Ballon Bayona, Cristine N. Ferreira
We investigate the spectroscopy of scalar and vector Kaluza-Klein modes that arise in a deformed Randall-Sundrum model that is constructed from Brans-Dicke theory. The non-minimal…
Plane Gravitational Radiation from Neutrinos Source with Kalb-Ramond Coupling
C. N. Ferreira, J. A. Helayel-Neto, N. A. Tomimura
In this work, we propose a model based on a non-minimal coupling of neutrinos to a Kalb-Ramond field. The latter is taken as a possible source for gravitational radiation. As an im…
Discussing Cosmic String Configurations in a Supersymmetric Scenario without Lorentz Invariance
C. N. Ferreira, J. A. Helayel-Neto, C. E. C. Lima
The main goal of this work is to pursue an investigation of cosmic string configurations focusing on possible consequences of the Lorentz-symmetry breaking by a background vector.…
Global-String and Vortex Superfluids in a Supersymmetric Scenario
C. N. Ferreira, J. A. Helayel-Neto, W. G. Ney
The main goal of this work is to investigate the possibility of finding the supersymmetric version of the U(1)-global string model which behaves as a vortex-superfluid. To describe…
Static strings in Randall-Sundrum scenarios and the quark anti-quark potential: Erratum
Henrique Boschi-Filho, Nelson R. F. Braga, Cristine N. Ferreira
We correct the energy of the static strings in hep-th/0512295, for large quark anti-quark separation. This energy is a smooth function of the quark separation for any position of t…
Heavy quark potential at finite temperature from gauge/string duality
Henrique Boschi-Filho, Nelson R. F. Braga, Cristine N. Ferreira
A static string in an AdS Schwarzschild space is dual to a heavy quark anti-quark pair in a gauge theory at high temperature. This space is non confining in the sense that the ener…
Static strings in Randall-Sundrum scenarios and the quark anti-quark potential
Henrique Boschi-Filho, Nelson R. F. Braga, Cristine N. Ferreira
We calculate the energy of a static string in an AdS slice between two D3-branes with orbifold condition. The energy for configurations with endpoints on a brane grows linearly for…
Topological mass term in effective Brane-World scenario with torsion
Nelson R. F. Braga, Cristine N. Ferreira
In this work we investigate a braneworld scenario where a Kalb-Ramond field propagates, together with gravity, in a five dimensional AdS slice. The rank-2 Kalb-Ramond field is asso…
Nonequivalent Seiberg-Witten maps for noncommutative massive U(N) gauge theory
Ricardo Amorim, Nelson R. F. Braga, Cristine N. Ferreira
Massive vector fields can be described in a gauge invariant way with the introduction of compensating fields. In the unitary gauge one recovers the original formulation. Although t…
A Discussion on Supersymmetric Cosmic Strings with Gauge-Field Mixing
C. N. Ferreira, C. F. L. Godinho, J. A. Helayel-Neto
In this paper, following a stream of investigation on supersymmetric gauge theories with cosmic string solutions, we contemplate the possibility of building up a D-and-F term cosmi…
Screwed superconducting cosmic strings
C. N. Ferreira
We show that it is possible to build up a consistent model describing a superconducting cosmic string (SCS) endowed with torsion. A full string solution is obtained by matching the…
Gravitational field around a screwed superconducting cosmic string in scalar-tensor theories
V. B. Bezerra, C. N. Ferreira
We obtain the solution that corresponds to a screwed superconducting cosmic string (SSCS) in the framework of a general scalar-tensor theory including torsion. We investigate the m…
Triplectic Gauge Fixing for N=1 Super Yang-Mills Theory
C. N. Ferreira, C. F. L. Godinho
The Sp(2)-gauge fixing of N = 1 super-Yang-Mills theory is considered here. We thereby apply the triplectic scheme, where two classes of gauge-fixing bosons are introduced. The fir…
Cosmic String in the Supersymmetric CSKR Theory
C. N. Ferreira, M. B. D. S. M. Porto, J. A. Helayel-Neto
We study a cosmic string solution of an N=1-supersymmetric version of the Cremmer-Scherk-Kalb-Ramond (CSKR) Lagrangian coupled to a vector superfield by means of a topological mass…
Superconducting Cosmic String with Propagating Torsion
C. N. Ferreira, H. J. Mosquera-Cuesta, L. C. Garcia de Andrade
We show that it is possible to construct a consistent model describing a current-carrying cosmic string endowed with torsion. The torsion contribution to the gravitational force an…