München 2006 – wissenschaftliches Programm

Bereiche | Tage | Auswahl | Suche | Downloads | Hilfe

GR: Gravitation und Relativitätstheorie

GR 404: Quantengravitation: andere Zug
änge

GR 404.1: Vortrag

Donnerstag, 23. März 2006, 16:30–16:50, K

Quantum Phantom Cosmologies — •Barbara Sandhöfer — Institut für Theoretische Physik, Universität zu Köln

Phantom cosmologies have recently attracted much attention. The classical behavior of these models is by now fairly well understood. Here, a quantum cosmological treatment of phantom models will be presented. As phantom cosmologies, Friedmann-Robertson-Walker cosmologies filled with scalar field with reversed sign of the kinetic energy term will be used. The potential of the phantom field is chosen to be exponential. Apart from the pure phantom model, models with additional degrees of freedom, namely cosmological constant, dust and radiation, are analised. The additional matter degrees of freedom are implemented via a conventional scalar field. I present solutions to the Wheeler-DeWitt equation and discuss their physical interpretation.