Periodic Q-balls
Event details
| Date | 19.11.2014 |
| Hour | 16:30 › 17:15 |
| Speaker | Andrey Shkerin (EPFL) |
| Location |
GR A3 30
|
| Category | Conferences - Seminars |
Geometry and Dynamics Seminar
Abstract: Q-balls are a type of non-topological solitons which is of large interest in physics due to its exciting applications to particle physics and cosmology. In particular, in the models of inflation, the inflaton potential often allows the existence of such solitons. This opens a question about the relations between the condensate inflaton solutions and Q-balls. In many cases, condensate turns out to be unstable and fragments into the stable solitons. We will consider a toy model, in which both condensate and solitons are classically stable, and transitions between them are caused by other processes, and discuss the relevance of this model to cosmology.
Abstract: Q-balls are a type of non-topological solitons which is of large interest in physics due to its exciting applications to particle physics and cosmology. In particular, in the models of inflation, the inflaton potential often allows the existence of such solitons. This opens a question about the relations between the condensate inflaton solutions and Q-balls. In many cases, condensate turns out to be unstable and fragments into the stable solitons. We will consider a toy model, in which both condensate and solitons are classically stable, and transitions between them are caused by other processes, and discuss the relevance of this model to cosmology.
Practical information
- Expert
- Free
Organizer
- Sonja Hohloch