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IAS PROGRAM ON PARTICLE THEORY
The Initial State of the Universe
Prof Hoi-Lai Yu, Institute of Physics, Academia Sinica
Date : 24 Nov 2016 (Thursday)
Time : 2:00 pm
Venue : IAS4042, 4/F, Lo Ka Chung Building, Lee Shau Kee Campus, HKUST

Abstract

FRW cosmology which is homogenous and isotropic is in acute conflicts with the attractive nature of gravitation which lumps things together described by General Relativity (GR). The great successes of FRW with experiments quest for paradigm shift in GR. The conformal structures, characterized by the Weyl tensor, are missing from GR. Matter is not really able to tell space-time how to curve. The intrinsic time formalism of gravitation not only generates the same physical contents of GR but also allows the potential being modified to include the conformally invariant Cotton-York (CY) tensor. The CY tensor along with the extrinsic curvature provides a full description of the gravitational depth of field in the theory, and as a result, no scalar field inflaton is needed to provide the initial exponential spatial expansion.

About the program

For more information, please refer to the program website http://iasprogram.ust.hk/particle_theory for details.

The seminar is free and open to all. Seating is on a first come, first served basis.

HKUST Jockey Club Institute for Advanced Study
Enquiries: ias@ust.hk / 2358 5912
http://ias.ust.hk

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