引力子自作用的研究

The Research of SelF-interaction of Gravitons

作者认为若要讨论引力子在宇宙演化中所起到的作用,就必须知道它们之间的相互作用.由于学术界以前更多关注的是粒子物理的效应,所以人们所关心的是它们的散射振幅,但是在宇宙学效应上,它们的相互作用势能与相互作用力才应是更加需要关心的.在文中,作者利用它们的自相互作用势能的解析表达式来得到相应的散射振幅.由其相应的势能表达式可见,引力子的自作用在大尺度下可以有斥力项存在,这一特殊的性质不仅使得它可以作为宇宙暗物质和暗能量的候选者,同时亦可能对于解释宇宙的构成及演化起到一定的积极作用.

If one discusses what role does graviton play in the universe evolution, it must know the interactive force between gravions. As people think much to their particle effctions before, so the physicists pay more attention to their scattering amplitude. But in cosmography people should pay much more attention to interactive force and intercative potentiai. In this paper, authors get the expression of graviton intercative potential by their intractive scattering amplitude. In big scale dimension, there can be repulsive force bettween gravitons. This particular character may cause the gravtion be the substitute of dark matter and dark energy in cosmography, and this character may also help us explain what constitues the universe and how the univers e evolutes.