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PERIMETER INSTITUTE RECORDED SEMINAR ARCHIVE

PIRSA:09090008  ( MP4 Medium Res , MP3 , PDF ) Which Format?
Aspects of Horava-Lifshitz Cosmology
Speaker(s): Shinji Mukohyama
Abstract:
In the first half of this talk I will review the basic idea of the power-counting renormalizable theory of gravitation recently proposed by Horava. In the second half I will talk about some cosmological implications of the theory. In particular, I will show that the anisotropic scaling with a dynamical critical exponent z=3 leads to generation of scale-invariant cosmological perturbations and that the absence of local Hamiltonian constraint leads to a component similar to cold dark matter as integration ""constant""."
Date: 15/09/2009 - 2:00 pm
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