Zobrazeno 1 - 10
of 29
pro vyhledávání: '"Otoya, V. J. Vasquez"'
Autor:
Alves, Paulo R. F., Costa, Cleber N., Fiorentini, D., Otoya, V. J. Vasquez, Abreu, Everton M. C., Neto, Jorge Ananias
In this paper, we propose a generalization of an improved gauge unfixing formalism in order to generate gauge symmetries in the non-Abelian valued systems. This generalization displays a proper and formal reformulation of second-class systems within
Externí odkaz:
http://arxiv.org/abs/2205.09161
In this work we consider the Einstein-Hilbert action in the first order order formalism coupled to Dirac spinors. From the little group symmetry, we derive the corresponding Bargmann-Wigner current which is conserved but not gauge invariant. Therefor
Externí odkaz:
http://arxiv.org/abs/2110.09363
Autor:
Fiorentini, D., Otoya, V. J. Vasquez
Canonical quantization is reviewed here for the Abelian Lee-Wick model by using the Dirac constraints method, a Gupta-Bleuler-like prescription is implemented and the BRST charge operator for this model is built. New degrees of freedom associated to
Externí odkaz:
http://arxiv.org/abs/1605.09339
Autor:
Assimos, T. S., Pereira Jr, A. D., Santos, T. R. S., Sobreiro, R. F., Tomaz, A. A., Otoya, V. J. Vasquez
Publikováno v:
Int.J.Mod.Phys. D26 (2017) no.08, 1750087
From pure Yang-Mills action for the $SL(5,\mathbb{R})$ group in four Euclidean dimensions we obtain a gravity theory in the first order formalism. Besides the Einstein-Hilbert term, the effective gravity has a cosmological constant term, a curvature
Externí odkaz:
http://arxiv.org/abs/1305.1468
We discuss the possibility of a class of gauge theories, in four Euclidean dimensions, to describe gravity at quantum level. The requirement is that, at low energies, these theories can be identified with gravity as a geometrodynamical theory. Specif
Externí odkaz:
http://arxiv.org/abs/1211.5993
Publikováno v:
PoS (ICMP 2012) 019
Pure gauge theories for de Sitter, anti de Sitter and orthogonal groups, in four-dimensional Euclidean spacetime, are studied. It is shown that, if the theory is asymptotically free and a dynamical mass is generated, then an effective geometry may be
Externí odkaz:
http://arxiv.org/abs/1210.8446
The relativistic generalization of the broken continuity equation that describes spin currents is exploited in general material media. The field theoretical techniques for the usual U(1) gauge theory with fermions in material media is employed. The s
Externí odkaz:
http://arxiv.org/abs/1208.6047
Publikováno v:
Eur.Phys.J.C72:1991,2012
Pure de Sitter, anti de Sitter, and orthogonal gauge theories in four-dimensional Euclidean spacetime are studied. It is shown that, if the theory is asymptotically free and a dynamical mass is generated, then an effective geometry may be induced and
Externí odkaz:
http://arxiv.org/abs/1109.0016
Autor:
Sobreiro, R. F., Otoya, V. J. Vasquez
Publikováno v:
Annals Phys. 326 (2011) 3067-3074
In this work we employ a field theoretical approach to explain the nature of the non-conserved spin current in spintronics. In particular, we consider the usual U(1) gauge theory for the electromagnetism at classical level in order to obtain the brok
Externí odkaz:
http://arxiv.org/abs/1107.0332
In this paper we study the effects of Lorentz Symmetry Breaking on thermodynamics properties of ideal gases. Inspired in the dispersion relation came from the Carroll-Field-Jackiw model for Electrodynamics with Lorentz and CPT violation term, we comp
Externí odkaz:
http://arxiv.org/abs/1106.4604