中文
相关论文

相关论文: On Non-commutative Corrections of Gravitational En…

200 篇论文

We investigate the distribution of gravitational energy on the spacetime of a Schwarzschild black hole immersed in a cosmic magnetic field. This is done in the context of the {\it Teleparallel Equivalent of General Relativity}, which is an…

广义相对论与量子宇宙学 · 物理学 2012-11-06 K. H. C. Castello-Branco , J. F. da Rocha-Neto

We present a method to calculate the gravitational energy when asymptotic boundary conditions for the space-time are not given. This is the situation for most of the cosmological models. The expression for the gravitational energy is…

广义相对论与量子宇宙学 · 物理学 2010-10-18 S. C. Ulhoa , J. F. da Rocha Neto , J. W. Maluf

This paper elaborates the problem of energy-momentum in the framework of teleparallel equivalent of General Relativity. For this purpose, we consider energy-momentum prescription derived from the integral form of the constraint equations…

广义相对论与量子宇宙学 · 物理学 2010-01-07 M. Sharif , Sumaira Taj

The lack of a well-established solution for the gravitational energy problem might be one of the reasons why a clear road to quantum gravity does not exist. In this paper, the gravitational energy is studied in detail with the help of the…

广义相对论与量子宇宙学 · 物理学 2023-08-25 J. B. Formiga , João Duarte

We develop a symmetric teleparallel gravity model in a space-time with only the non-metricity is nonzero, in terms of a Lagrangian quadratic in the non-metricity tensor. We present a detailed discussion of the variations that may be used…

广义相对论与量子宇宙学 · 物理学 2009-11-11 Muzaffer Adak , Mestan Kalay , Ozcan Sert

A quantum cosmology in teleparallel gravity is presented in this article. Teleparallel gravity is used to perform such an analysis once in General Relativity (GR) the concept of gravitational energy is misleading preventing the…

广义相对论与量子宇宙学 · 物理学 2018-02-23 A. S. Fernandes , S. C. Ulhoa , R. G. G. Amorim

Teleparallel gravity shares many qualitative features with general relativity, but differs from it in the following way: whereas in general relativity, gravitation is a manifestation of space-time curvature, in teleparallel gravity,…

物理学史与哲学 · 物理学 2024-06-25 James Owen Weatherall , Helen Meskhidze

We study a noncommutative theory of gravity in the framework of torsional spacetime. This theory is based on a Lagrangian obtained by applying the technique of dimensional reduction of noncommutative gauge theory and that the yielded…

综合物理 · 物理学 2014-12-30 Aref Yazdani

In this work a tetrad theory of gravity, invariant under conformal transformations, is investigated. The action of the theory is similar to the action of Maxwell's electromagnetism. The role of the electromagnetic gauge potential is played…

广义相对论与量子宇宙学 · 物理学 2012-06-28 J. W. Maluf , F. F. Faria

The transformation properties of the gravitational energy-momentum in the teleparallel gravity are analyzed. It is proved that the gravitational energy-momentum in the teleparallel gravity can be expressed in terms of the Lorentz gauge…

广义相对论与量子宇宙学 · 物理学 2007-05-23 G. Y. Chee , Ye Zhang , Yongxin Guo

Recently, an extension of teleparallelism to a Weyl geometry which allows us to easily establish conformal invariance and "geometrize" electromagnetism has been presented. In this paper, I extend a result which concerns the existence of the…

广义相对论与量子宇宙学 · 物理学 2014-01-30 J. B. Formiga

Due to its underlying gauge structure, teleparallel gravity achieves a separation between inertial and gravitational effects. It can, in consequence, describe the isolated gravitational interaction without resorting to the equivalence…

广义相对论与量子宇宙学 · 物理学 2009-11-11 R. Aldrovandi , L. C. T. Guillen , J. G. Pereira , K. H. Vu

Teleparallel theories of gravity are described in terms of the tetrad of a metric and a flat connection with torsion. In this paper, we study spherical symmetry in a modified teleparallel theory of gravity which is based on an arbitrary…

广义相对论与量子宇宙学 · 物理学 2021-05-06 Sebastian Bahamonde , Christian Pfeifer

An axiomatization of the so-called Teleparallel Equivalent to General Relativity is presented. A set of formal and semantic postulates are elaborated from where the physical meaning of various key concepts of the theory are clarified. These…

广义相对论与量子宇宙学 · 物理学 2017-11-27 Luciano Combi , Gustavo E. Romero

The description of the gravitation energy is a long standing problem. Although some success has been achieved, there is no satisfactory solution to this problem yet. Probably the most promising approach to this problem is given by…

广义相对论与量子宇宙学 · 物理学 2025-07-01 R. D. Costa , J. B. Formiga

Teleparallel gravity, a gauge theory for the translation group, turns up as fully equivalent to Einstein's general relativity. In spite of this equivalence, it provides a whole new insight into gravitation. It breaks several paradigms…

广义相对论与量子宇宙学 · 物理学 2015-06-15 J. G. Pereira

In the context of the teleparallel equivalent of general relativity, we show that the energy-momentum density for the gravitational field can be described by a true spacetime tensor. It is also invariant under local (gauge) translations of…

广义相对论与量子宇宙学 · 物理学 2007-05-23 V. C. de Andrade , L. C. T. Guillen , J. G. Pereira

In the context of teleparallel equivalent to General Relativity, we study energy and its relevant quantities for some well-known black hole solutions. For this purpose, we use the Hamiltonian approach which gives reasonable and interesting…

综合物理 · 物理学 2011-01-17 M. Sharif , Abdul Jawad

In the semi-classical regime, quantum fluctuations embedded in a Riemannian spacetime can be effectively recast as classical back reactions and manifest themselves in the form of non-minimal couplings between matter and curvature. In this…

广义相对论与量子宇宙学 · 物理学 2022-02-07 Che-Yu Chen , Yu-Hsien Kung

Teleparallel gravity, an empirically equivalent counterpart to General Relativity, represents the influence of gravity using torsional forces. It raises questions about theory interpretation and underdetermination. To better understand the…

物理学史与哲学 · 物理学 2024-11-20 Helen Meskhidze , James Owen Weatherall
‹ 上一页 1 2 3 10 下一页 ›