| Speaker: | Ruth Gregory (Durham) |
|---|---|
| Title: | Dark energy or light gravity? |
| Date (JST): | Wed, Apr 08, 2009, 15:30 - 17:00 |
| Place: | Media Hall, 1st floor of Kashiwa Library |
| Abstract: |
Supernova observations indicate that the universe is currently accelerating, but is this acceleration due to a cosmological constant or light scalar, or is it due to modifications to Einstein gravity? Large extra dimension scenarios give a way of modifying gravity at ultra large scales, and I'll describe some general scenarios which give rise to late time acceleration, and discuss their physical consistency. |
