I will discuss simple mechanical models with a ghost (i.e. a mode with a negative kinetic energy) interacting with a positive energy degree of freedom, and yet, the phase-space motion can be shown analytically and numerically to be fully stable thanks to integrability. Extensions to field theories will also be discussed.
Cedric Deffayet (Paris): Ghosts without runaway instabilities
Location:
Victor-Franz-Hess-Hörsaal, Währinger Str. 17, 1. Stock Kavalierstrakt
Related Files
- Deffayet_19_Feb_2025.pdf 205 KB
