Skip navigation and go to content
Physics and Astronomy

Physics & Astronomy Colloquium

3:30 PM, Friday, April 10, 2009
Room 155, Chem-Phys Building

Dr. Sandeep Trivedi
Tata Institute of Fundamental Research
Mumbai, India

Recent progress in observational cosmology has revealed that the universe is accelerating. A small and positive cosmological constant provides the leading theoretical explanation for this acceleration. We now understand that such a cosmological constant can arise in string theory. The picture which emerges is that of a complicated landscape with many- many vacuua, and widely varying values for the cosmological constant and the other constants of nature. What this landscape means for string theory and our quest for the fundamental laws of nature is a matter of active discussion. The colloquium will review these developments.

Refreshments will be served in CP 177 at 3:15 PM