The physics of dark sector, dark matter, dark energy and inflation

暗区、暗物质、暗能量和暴涨的物理学

• 批准号: 341302-2010
• 负责人: Sigurdson, Kris
• 金额: $ 3.21万
• 依托单位: University of British Columbia
• 依托单位国家: 加拿大
• 项目类别: Subatomic Physics Envelope - Individual
• 财政年份: 2012
• 资助国家: 加拿大
• 起止时间: 2012-01-01 至 2013-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=515102
• 关键词: physics; dark; sector; matter; energy

The standard model of particle physics (SM) and general relativity (GR) are arguably the best tested and most successful scientific theories in history. They provide a coherent description of known physics observed on Earth, in the solar system, and in the stars. Together, they account in exquisite detail for the pattern of light elements forged in the early Universe during big bang nucleosynthesis and provide a solid framework to consider cosmological questions. Yet, precisely because we understand them so well, we are now certain that the SM and GR provide an incomplete description of our Universe. From cosmology, we now have strong evidence: (i) that the abundance of dark matter is roughly six times larger than the abundance of ordinary atoms; (ii) that an epoch like inflation occurred in the early Universe to seed the ripples that grew to form the structures in the Universe we observe today; (iii) that the Universe today is dominated by dark energy which is causing its expansion rate to increase rather than decrease.

粒子物理学（SM）和广义相对论（GR）的标准模型可以说是历史上最好的测试和最成功的科学理论。 它们对在地球、太阳系和恒星中观测到的已知物理学提供了连贯的描述。 它们一起详细地解释了早期宇宙在大爆炸核合成过程中形成的轻元素的模式，并为考虑宇宙学问题提供了一个坚实的框架。 然而，正是因为我们对它们的理解如此之好，我们现在可以肯定，SM和GR提供了对我们宇宙的不完整描述。 从宇宙学来看，我们现在有了强有力的证据：（1）暗物质的丰度大约是普通原子丰度的六倍;（2）早期宇宙中发生了一个类似暴胀的时代，从而产生了涟漪，这些涟漪逐渐形成了我们今天观察到的宇宙结构;（iii）今天的宇宙是由暗能量主导的，这导致它的膨胀率增加而不是减少。