NPAC (Nuclear/Particle/Astro/Cosmo) Forums |
Organized by: Prof. Lu Lu
Events on Friday, October 17th, 2008
- Towards the Emergence of Cyclic Universes with Scale-invariant fluctuations
- Time: 2:30 pm
- Place: 5280 Chamberlin
- Speaker: Tirthabir Biswas, Pennsylvania State University
- Abstract: Tolman pointed out that if a cyclic universe model has<br>
to be consistent with the second law of<br>
thermodynamics, the cycles must inevitably shrink to<br>
zero as one goes back in time (cycles). I will provide<br>
a simple cosmological paradigm which avoids this<br>
"super Big Bang". Moreover we will see that in these<br>
"Emergent cyclic models" new mechanisms for generating<br>
scale-invariant fluctuations can naturally emerge.<br>
<br>
- Host: Daniel Chung