学术
宇宙起源及宇宙命运
焦善庆[1] 许弟余[2] 龚自正[3] 江光佐[1]
[1]西南交通大学理学院物理系,四川成都610031 [2]四川职业技术学院物理系,四川遂宁629000 [3]西南交通大学理学院物理研究所,四川成都610031
摘 要:
引入宇宙早期核子概念,认为宇宙不是起源于时间为0、空间为0的点大爆炸,而是起源于t=10^-62s,T=10^51K,r=10^-52cm“超微黑洞”的大爆炸.爆炸后宇宙是一个光子热平衡态和引力束缚态共存的系统,光子热平衡态占优势,迫使宇宙膨胀.tc=10^-35s,宇宙对应的温标为10^14 GeV,并在tc=10^-35～10^-32s间发生暴胀、相变.暴胀、相变中形成的多成分粒子宇宙,是现时粒子的超对称性伴子,有较大的质标.“中性微子”质量mUe,B^0=230 GeV,它是暗物质,当暗物质使宇宙总质量多得过了头,宇宙即由膨胀转入收缩.[著者文摘]
文章出处:
《吉首大学学报：自然科学版》-2006年27卷2期 -46-49页
栏目信息:
分 类 号:
文献标识码:
A
文章编号:
1007-2985（2006）02-0046-04
The Origin and the Fate of the Universe
JIAO Shan-qing, XU Di-yu, GONG Zi-zheng, JIANG Guang-zuo （ 1. Department of Physics, Science College, Southwest Jiaotong University, Chengdu 610031, Sichuan China; 2. Department of Physics,Sichuan Vocational and Technical College,Suining 629000,Sichuan China; 3. Institute of Physics, Science College, Southwest Jiaotong University, Chengdu 610031, Sichuan China）
Abstract:
The concept of the nucleon of the early universe is introduced and the conclusion is reached that the universe didn＇ t originate from the big bang of the point, of which the time and the space were both zero, but originated from the big bang of the super-micro-black hole, of which the time, the temperature and the radius were respectively t = 10^-62 s, T = 10^51 K and r = 10^-52 cm. After the big bang, the universe was a coexistence system of the thermal equilibrium state of photons and of the gravitational bound state, and the thermal equilibrium state of photons was in predomination, which forced the universe to expand.When tc = 10^-35 s,the corresponding temperature scale of the universe was 10^14 GeV,and the inflation and the phase transition of the universe took place during the period of time tc = 10^-35 - 10^-32 s. The multicomponent universe particles which formed in the inflation and the phase transition are the supersymmetry companions of present particles and have big mass scales. A ＂neutralino＂, of which the mass is mUe,B^0 = 320 GeV, is of dark matter,and if the neutralinos make the total mass of the universe too much and beyond the limit,the universe will change from expansion into contraction[著者文摘]
Key words:
the big bang of the universe;the nucleons of the early universe;supersymmetry;neutralinos;dark matter
基金资助:
国家自然科学基金资助项目（10032040）;中国工程物理研究院科学技术资金资助项目（990226,9702034）
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