摘要
若宇宙为光子热平衡态和引力束缚态并存的系统,光子平衡态占优势则宇宙必然膨胀;若它遭到削弱或破坏,引力束缚态占优势,则宇宙将由膨胀转为收缩(坍塌).引入宇宙早期和宇宙晚期核子概念,则宇宙演化与核子演化间存在相互关联.给出暗物质即υe,F的超对称伴子U-e0,B,有较大质标,若它迫使宇宙总质量大得过了头,宇宙将发生坍塌.宇宙由膨胀转为收缩的条件是:当晚期核子的质量减小到现时光子质量的上限,则光子平衡态遭到削弱,引力束缚态占优势.在转入收缩之前宇宙为减速膨胀.
If the universe is a coexistence system of the thermal equilibrium state of photons and of the gravitational bound state, and the equilibrium state of photons is predominant in the system, the universe will inevitably expand, and if the thermal equilibrium is weakened or destroyed and the gravitional is in dominant position, the universe will change from expansion into contraction. The concept of the early universe nucleon and that of the late universe nucleon are introduced, so the mutual correlation exists between the evolution of the universe and that of nucleons. The dark matter, namely, the supersymmetry companion Ue^0,B of υ e,F is given, which has big mass scale, and if it makes the total mass of the universe too much and beyond the limit, the universe will collapse. The condition which makes the universe change from expansion to contraction is that when the mass of the late nucleon decreases to the upper limit of the mass of a present photon, the thermal equilibrium of photons will be weaken and the gravitational bound state will preponderate over the universe. Before it change to contraction, the universe will expand at deceleration.
出处
《云南大学学报（自然科学版）》
CAS
CSCD
北大核心
2010年第4期433-436,共4页
Journal of Yunnan University(Natural Sciences Edition)
基金
国家自然科学基金资助项目(40474033)
中国工程物理研究院科学技术基金资助项目(990226)
关键词
宇宙“大坍塌”
暗物质
超对称
光子热平衡态
引力束缚态
big collapse of the universe
dark matter
supersymmetry
thermal equilibrium state
gravitational bound state
