| DATE: |
2009-06-09 11:00 - 12:00 |
| PLACE: |
Kenkyu Honkan 2F RM 244 |
| TITLE: |
Aspects of Horava-Lifshitz cosmology |
| CONTACT: |
ISHIBASHI, Akihiro / isibasi AT post.kek.jp |
| SPEAKER: |
Prof. S. Mukohyama (IPMU) |
| 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 scale-invariant cosmological perturbations in non-inflationary epoch and that the absence of local Hamiltonian constraint leads to a component similar to cold dark matter as integration "constant". |
