CPT

Calendar of Physics Talks Vienna

Ghosts without runaway instabilities
Speaker:Cedric Deffayet (IHES Paris)
Abstract: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.
Date: Wed, 19.02.2025
Time: 14:15
Duration: 60 min
Location:VERA Seminar Room (Viktor-Franz-Hess Lecture Hall), Waehringer Straße 17, Hoftrakt
Contact:P. Chrusciel, D. Fajman