Hanno Gottschalk (Bonn):   Initial value formulation for the semicalssical Einstein equation on Robertson Walker spacetimes
 
(joint work with B. Elzner)
 
The semiclassical Einstein Equation describes the coupling of a quantized field (fee in this case) to classical gravity. Here we study a system that initially is in a state with spatial isotropy and homogenity (Robertson Walker). We propose an equation for an infinite dimensional dynamical system for this situation.