Seminar----Institute of Theoretical Physics，Chinese Academy of Sciences

CAS Key Laboratory of Theoretical Physics
Institute of Theoretical Physics
Chinese Academy of Sciences
Seminar
Title 题目	Intrinsic Time Quantum Gravity and the Unique Initial State of the Universe
Speaker 报告人	Hoi-Lai Yu
Affiliation 所在单位	台湾中央研究院物理研究所
Date 日期	10:00 Oct 27,2017
Venue 地点	Room 6420, ITP NEW BUILDING
Abstract 摘要	The precise matching between theory of the expanding Universe and the CMB/Planck data are usually believed a great triumph of the ΛCDM model and General Relativity(GR). The homogenous and isotropic sliced ΛCDM model with inflation is quantitatively backed up by GR, which, however, is attractive(to lump things together) and covariant. These are fundamentally conflicting properties. In line with the fact that the Universe is expanding and future is yet to come. As paradoxical as it may seem: only to quest for paradigm shift in both GR and inflationary models may resolve these obvious intrinsic contradictions. Of course, suspicious may seem if inflation also need a paradigm shift; a dynamic of spatial evolution w.r.t to intrinsic time driven by the Cotton-York tensor automatically replaces inflationary paradigm. A successful solution to the initial condition of the Universe will naturally deliver an inflationary epoch, i.e. de Sitter spacetime expansion of the Universe in the early epoch. In this talk, we shall elaborate how trivial one can sew together both paradigm shift in GR and inflation by just identifying the correct symmetries in GR.
Contact person 所内联系人	Rong-Gen Cai, Zong-Kuan Guo