| Date: |
November 19, 2008, 13:30 - 14:30 |
| Place: |
Room 633, 6th floor, Kashiwa Research Complex |
| Speaker: |
Pisin Chen (National Taiwan University & Stanford) |
| Title: |
The Dark Energy Puzzle
|
| Abstract: |
This year celebrates the 10th anniversary of the dramatic
discovery of the accelerating expansion of the universe. Instead of slowing
down, the Hubble expansion of the universe was found to have been speeding
up. The substance that is supposedly responsible for this accelerated
expansion of the universe is generally referred to as gdark energyh. There
has been a spectrum of dark energy theories that attempt to explain this
extraordinary phenomenon. In this seminar we will give an overview of the
dark energy puzzle: its history, current observational status, and the
theoretical attempts. We then focus on a specific model that connects the
dark energy with the well-known hierarchy problem between the standard model
of particle physics and the Planck scale. Towards the end of this talk we
will epredictf the state of dark energy 10 years from now.
|
