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1. Mass Is Not Constant in a Gravitational Field | |||
Zhan Likui | |||
Physics 30 November 2010 | |||
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Abstract:Various gravitation theories predict that a star with large enough mass will shrink down to a final point, gravitational singularity. The gravitational singularity is always one of the difficult problems in the world. This work reviews some kinds of difficulties which relates to gravitational fields. Based on experimental analysis and theoretical verification, a new hypothesis regarding mass in gravitational fields is presented. In this case, the gravitational singularity no longer appears and the meaning of gravitation is simple to determine. The hypothesis is also the result that various facts and theories have been repeatedly weighed. In the end, a method for verification of the hypothesis is proposed. | |||
TO cite this article:Zhan Likui. Mass Is Not Constant in a Gravitational Field[OL].[30 November 2010] http://en.paper.edu.cn/en_releasepaper/content/4394178 |
2. Temperature and Energy of 4-dimensional Black Holes from Entropic Force | |||
Liu Yuxiao ,Wang Yongqiang ,Wei Shaowen | |||
Physics 17 June 2010 | |||
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Abstract:We investigate the temperature and energy on holographic screens for 4-dimensional black holes with the entropic force idea proposed by Verlinde. We find that the “Unruh-Verlinde temperature” is equal to the Hawking temperature on the horizon and can be considered as a generalize Hawking temperature on the holographic screen outside the horizons. The energy on the holographic screen is not the black hole mass $M$ but the reduced mass $M_0$, which is related to the black hole parameters. With the replacement of the black hole mass $M$ by the reduced mass $M_0$, the entropic force can be written as $F= frac{GmM_0}{r^2}$, which could be tested by experiments. | |||
TO cite this article:Liu Yuxiao ,Wang Yongqiang ,Wei Shaowen . Temperature and Energy of 4-dimensional Black Holes from Entropic Force[J].Classical and Quantum Gravity,2010,27(18):185002~185002. |
3. Quasinormal modes of the Schwarzschild black hole with arbitrary spin fields | |||
Qiyuan Pan,Jiliang Jing | |||
Physics 27 February 2006 | |||
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Abstract:The quasinormal modes (QNMs) associated with the decay of massless arbitrary spin fields around a Schwarzschild black hole are investigated by using the continued fraction method in a united form and their universal properties are found. It is shown that these QNMs become evenly spaced for large angular quantum number $l$ (for the boson perturbations) and $j$ (for the fermion perturbations) and the spacing is independent of the spin number $s$ and overtone number $n$, and in the complex plane they have an interesting trend which depends on $n$ before they become the same value with the increasing $l$ (or $j$). It is also shown that the angular quantum number has the surprising effect of increasing real part of the QNMs, but it almost does not affect imaginary part, especially for the lowest lying mode. In addition, the spacing for imaginary part of the QNMs at high overtones is equidistant and equals to $-i/4M$, which is independent of $l$ (or $j$) and $s$. | |||
TO cite this article:Qiyuan Pan,Jiliang Jing. Quasinormal modes of the Schwarzschild black hole with arbitrary spin fields [OL].[27 February 2006] http://en.paper.edu.cn/en_releasepaper/content/5393 |
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