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arXiv 1905.04136gr-qc
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嵌入Quintessence的旋转Kerr黑洞的赝牛顿势

Pseudo Newtonian Potential For a Rotating Kerr Black Hole Embedded in Quintessence

Siddhartha Sankar Sarkar, Ritabrata Biswas

摘要:

伪牛顿势一直是讨论粒子在时空中运动的有效工具,它避免了广义相对论中场方程的繁琐和几乎不可能的非线性计算。Mukhopadhyay在2002年为旋转克尔黑洞引入了这样一个伪牛顿势,它足够有效,可以复制经典力学的场景。但没有这样的模型来解释暗能量领域。2016年,S Ghosh为这种嵌入精华的旋转黑洞引入了拉格朗日。在本文中,我们得到了这个新黑洞解的一个伪牛顿力。本文介绍了一个简单的计算方案,以评估任何时空度规的伪牛顿力。该模型最多具有相当于广义相对论结果的$4.95 \%$误差。因为我们采用了一种流行的暗能量,这是一种广义的伪牛顿力,可以用来解释晚期加速宇宙。本文还讨论了有无暗能量效应时赝牛顿力的差别。本文还解释了我们现在的宇宙的性质和它的命运(局部地在一个黑洞周围,当考虑到暗能量的排斥负压时)。

英文摘要:

Pseudo-Newtonian Potential has always been a useful tool to discuss the motion of a particle in space-time to avoid the tedious and nearly impossible nonlinear computations coming from the field equations of general relativity. Mukhopadhyay, in 2002, has introduced such a pseudo-Newtonian potential for rotating Kerr black hole which is efficient enough to replicate the scenario of the classical mechanics. But there was no such model to explain the dark energy realm. In 2016 S Ghosh introduced a Lagrangian for such rotating black hole embedded in quintessence. in this article we obtained a pseudo-Newtonian force for this new black hole solution embedded quintessence. This paper introduces a simple computational scheme to evaluate a pseudo-Newtonian force for any space-time metric. This model possesses at most $4.95 \%$ error corresponding to general relativistic results. Since we took a popular agent of dark energy, i.e., quintessence into account, this is a general form of pseudo-Newtonian force to explain late time accelerating universe. In this paper, it also has been discussed about the difference between the pseudo-Newtonian force with and without dark energy effect. This paper also explains the natures of our present universe and its fate(locally around a black hole when repulsive negative pressure of dark energy is taken into account).

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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