| 高导数引力理论宇宙动力学方程 |
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| 引用本文： | 刘鑫,陈贻汉.高导数引力理论宇宙动力学方程[J].湖北大学学报(自然科学版),2003,25(4):309-311. |
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| 作者姓名： | 刘鑫 陈贻汉 |
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| 作者单位： | 湖jE大学物理学与电子技术学院，湖北武汉430062 |
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| 摘 要： | 利用高导数引力理论研究宇宙的演化。在Friedmann宇宙模型中，由高导数场方程导出宇宙动力学方程。此方程为宇宙标度因子关于时间的三阶非线性微分方程，并由能量-动量守恒及物态方程导出能量密度和宇宙标度因子的关系，最后比较了高导数引力理论动力学方程和标准动力学方程。
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| 关 键 词： | 高导数引力理论 宇宙动力学方程 场方程 Hubble常数 标度因子 |
| 文章编号： | 1000-2375(2003)04-0309-03 |
| 修稿时间： | 2003年4月30日 |
Universe dynamic equation of higher-derivation theory |
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| LIU Xin,CHEN Yi-han.Universe dynamic equation of higher-derivation theory[J].Journal of Hubei University(Natural Science Edition),2003,25(4):309-311. |
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| Authors: | LIU Xin CHEN Yi-han |
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| Abstract: | The evolvement of cosmology is studied in the framework of higher-derivative theory of gravitation. The dynamic equation of universe is derived from the higher-derivative field equation of gravitation in the case of homogeneous universe. The dynamic equation is a nonlinearized three-order differential equation with respective to time, and the relation between density of energy and scalar factor is gotten from the conservation law of energy-momentum tensor and the equation of state. At last compare the higher-derivative dynamic equation with the standard dynamic equation. |
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| Keywords: | field equation dynamic equation Hubble constant scalar factor |
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