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  Location: Home >  Research Activities >  Seminar
Intrinsic Time Quantum Gravity and the Unique Initial State of the Universe
2017-10-27     Text Size:  A

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
  Appendix:
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