平坦时空引力理论的反弹宇宙学及其新解释
Cosmology with Bounce by Flat Space-Time Theory of Gravitation and a New Interpretation
摘要：
广义相对论预言了宇宙开始时的一个奇点，称为大爆炸。圈量子宇宙学的最新发展避免了奇点，大爆炸被大反弹所取代。在平坦时空中的经典引力理论也避免了自然条件下密度参数的奇异性。宇宙收缩到一个正的最小值，然后它在所有的时间膨胀。它关于它的最小值是不对称的，这意味着用宇宙的固有时间测量的有限年龄。宇宙空间是平坦的，总能量是守恒的。假设密度参数之和略大于1，宇宙在早期非常热。后来，宇宙学模型与广义相对论的宇宙学模型一致。利用引力的平坦时空理论，可以对非膨胀宇宙给出一种新的解释。
英文摘要：
General relativity predicts a singularity in the beginning of the universe being called big bang. Recent developments in loop quantum cosmology avoid the singularity and the big bang is replaced by a big bounce. A classical theory of gravitation in flat space-time also avoids the singularity under natural conditions on the density parameters. The universe contracts to a positive minimum and then it expands during all times. It is not symmetric with regard to its minimum implying a finite age measured with proper time of the universe. The space of the universe is flat and the total energy is conserved. Under the assumption that the sum of the density parameters is a little bit bigger than one the universe is very hot in early times. Later on, the cosmological model agrees with the one of general relativity. A new interpretation of a non-expanding universe may be given by virtue of flat space-time theory of gravitation.
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