Energy and Momentum of the Szekeres Universes in Tele-parallel Gravity
نویسندگان
چکیده
In order to evaluate the energy distribution (due to matter and fields including gravitation) associated with a space-time model of Szekeres class I and II metrics, we consider the Einstein, Bergmann-Thomson and LandauLifshitz energy and/or momentum definitions in the tele-parallel gravity (the tetrad theory of gravitation). We find the same energy distribution using Einstein and Bergmann-Thomson formulations, but we also find that the energy-momentum prescription of Landau-Lifshitz disagree in general with these definitions. This results are the same as a previous works of Aygün et al., they investigated the same problem in general relativity by using Einstein, Bergman-Thomson, Møller and Landau-Lifshitz (LL) energy-momentum complexes.
منابع مشابه
ar X iv : g r - qc / 0 61 10 12 v 1 2 N ov 2 00 6 The Energy of Bianchi Type I and II Universes in Teleparallel Gravity
For certain models, the energy of the universe which includes the energy of both the matter and the gravitational fields is obtained by using the quasilocal energy-momentum in teleparallel gravity. It is shown that in the case of the Bianchi type I and II universes, not only the total energy but also the quasilocal energy-momentum for any region vanishes independently of the three dimen-sionles...
متن کاملEnergy Distributions in Szekeres Type I and Ii Space Times
In this study, in context of general relativity we consider Einstein, Bergmann-Thomson, Møller and Landau-Lifshitz energy momentum definitions and we compute the total energy distribution (due to matter and fields including gravitation) of the universe based on Szekeres class I and class II space-times. We show that Einstein and Bergmann-Thomson definitions of the energy-momentum complexes give...
متن کاملسیاهچالههای نظریه گوس- بونه در حضور شاره کامل
In this paper, the solutions of the Gauss-Bonnet theory of gravity was proposed in the presence of a perfect fluid with thermodynamic pressure P and energy gravity ρ in n-dimension. Accordingly, perfect fluid tensor was regarded as energy-momentum tensor and the static and radiating solutions for the linear equation of state p = wρ was calculated. This solution contains all the solutions alread...
متن کاملClosed Time like Curves and the Energy Condition in 2+1 Dimensional Gravity
We consider gravity in 2+1 dimensions in presence of extended stationary sources with rotational symmetry. We prove by direct use of Einstein’s equations that if i) the energy momentum tensor satisfies the weak energy condition, ii) the universe is open (conical at space infinity), iii) there are no CTC at space infinity, then there are no CTC at all. The problem of closed time like curves (CTC...
متن کاملAdaptive Control Strategy for a Bilateral Tele- Surgery System Interacting with Active Soft Tissues
In this paper, the problem of control and stabilization of a bilateral tele-surgery roboticsystem in interaction with an active soft tissue is considered. To the best of the authors’ knowledge, theprevious works did not consider a realistic model for a moving soft tissue like heart tissue in beating heartsurgery. Here, a new model is proposed to indicate significant characteristics of a moving ...
متن کامل