Zobrazeno 1 - 10
of 44
pro vyhledávání: '"Ferreira, Cristine N."'
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 inspect these possible currents in (1+2) dimensions by adopting an N =2 -
Externí odkaz:
http://arxiv.org/abs/2001.00724
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 torsion. We consider that torsion interacting terms in Dirac equation appe
Externí odkaz:
http://arxiv.org/abs/1606.06610
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 in which df(R)/dR = F(R) is a power law function of the radial coordin
Externí odkaz:
http://arxiv.org/abs/1510.08176
Autor:
Ferreira, Cristine N.
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 corresponded to a M2-brane where the space-time presents the co-dimension
Externí odkaz:
http://arxiv.org/abs/1312.0578
We provide a simple method for writing the Dirac-Born-Infeld (DBI) equations of a Dp-brane in an arbitrary static background whose metric depends only on the holographic radial coordinate z. Using this method we revisit the Karch-O'Bannon's procedure
Externí odkaz:
http://arxiv.org/abs/1302.0802
Publikováno v:
Class.Quant.Grav.28:015011,2011
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 equations in the presence of an infinite static string and negative c
Externí odkaz:
http://arxiv.org/abs/1003.5396
Publikováno v:
New J. Phys. 12:053038,2010
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 coupling in the Brans Dicke theory translates into a deformation of th
Externí odkaz:
http://arxiv.org/abs/0812.1621
Publikováno v:
Phys.Rev.D78:026004,2008
We investigate the finite temperature quark anti-quark problem in a compact space $S^{n-1}\times S^1$ by considering static strings in global $AdS_{n+1}$ space with $n\ge 3$. For high temperatures we work in the black hole metric where two possible s
Externí odkaz:
http://arxiv.org/abs/0801.0305
Publikováno v:
Phys.Rev. D73 (2006) 106006
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 the infrared brane. The asymptotic behavior of this energy is that of t
Externí odkaz:
http://arxiv.org/abs/hep-th/0610131
Publikováno v:
Phys.Rev.D74:086001,2006
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 energy is finite for infinite quark anti-quark separation. We introduce an
Externí odkaz:
http://arxiv.org/abs/hep-th/0607038