Zobrazeno 1 - 10
of 37
pro vyhledávání: '"Godinho, Cresus F. L."'
Our main interest here is to analyze the gauge invariance issue concerning the noncommutative relativistic particle. Since the analysis of the constraint set from Dirac's point of view classifies it as a second-class system, it is not a gauge theory.
Externí odkaz:
http://arxiv.org/abs/1701.00800
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
Nonextensive statistics, entropic gravity and gravitational force in a non-integer dimensional space
Based on the connection between Tsallis nonextensive statistics and fractional dimensional space, in this work we have introduced, with the aid of Verlinde's formalism, the Newton constant in a fractal space as a function of the nonextensive constant
Externí odkaz:
http://arxiv.org/abs/1309.7403
Adopting a particular approach to fractional calculus, this paper sets out to build up a consistent extension of the Faddeev-Jackiw (or Symplectic) algorithm to carry out the quantization procedure of coarse-grained models in the standard canonical w
Externí odkaz:
http://arxiv.org/abs/1208.2266
Extending the D'Alembert Solution to Space-Time Modified Riemann-Liouville Fractional Wave Equations
Publikováno v:
Chaos, Solitons & Fractals 45 (2012) 765-771
In the realm of complexity, it is argued that adequate modeling of TeV-physics demands an approach based on fractal operators and fractional calculus (FC). Non-local theories and memory effects are connected to complexity and the FC. The non-differen
Externí odkaz:
http://arxiv.org/abs/1111.6266
So far, it is not well known how to deal with dissipative systems. There are many paths of investigation in the literature and none of them present a systematic and general procedure to tackle the problem. On the other hand, it is well known that the
Externí odkaz:
http://arxiv.org/abs/1102.4532
Publikováno v:
Phys.Lett.B638:272-274,2006
We build up normal ordered products for fermionic open string coordinates consistent with boundary conditions. The results are obtained considering the presence of antisymmetric tensor fields. We find a discontinuity of the normal ordered products at
Externí odkaz:
http://arxiv.org/abs/hep-th/0602212
Publikováno v:
J.Math.Phys.46:062302,2005
Boundary conditions play a non trivial role in string theory. For instance the rich structure of D-branes is generated by choosing appropriate combinations of Dirichlet and Neumann boundary conditions. Furthermore, when an antisymmetric background is
Externí odkaz:
http://arxiv.org/abs/hep-th/0412075
Publikováno v:
Phys.Lett.B570:111-117,2003
We build up the anticommutator algebra for the fermionic coordinates of open superstrings attached to branes with antisymmetric tensor fields. We use both Dirac quantization and the symplectic Faddeev Jackiw approach. In the symplectic case we find a
Externí odkaz:
http://arxiv.org/abs/hep-th/0306163
Publikováno v:
Phys.Rev.D65:085030,2002
We show how to translate boundary conditions into constraints in the symplectic quantization method by an appropriate choice of generalized variables. This way the symplectic quantization of an open string attached to a brane in the presence of an an
Externí odkaz:
http://arxiv.org/abs/hep-th/0110297