Gravity seminar - Gyula Fodor Seminar
- Time:
- 12:00 - 13:00
- Date:
- 30 November 2017
- Venue:
- 54/7033(7C)
For more information regarding this seminar, please email David Tsang at d.tsang@soton.ac.uk .
Event details
Anti-de Sitter geons
Geons are localized horizonless objects formed by gravitational waves held together by the gravitational attraction of their own field energy. If there is a negative cosmological constant, the spacetime of geons asymptotically approaches the anti-de Sitter (AdS) metric. AdS geons are time-periodic regular localized vacuum solutions without any radiation loss at infinity. A perturbative construction in terms of an amplitude parameter shows that there are one-parameter families of AdS geon solutions emerging from combinations of identical-frequency linear modes of the system. The five AdS geon families that emerge from the lowest frequency modes will be presented.
Speaker information
Gyula Fodor, Research Institute for Particle and Nuclear Physics, Hungary.