Boost invariant quantum evolution of a meson field at large proper times

摘要

Asymptotic solutions of the functional Schroedinger equation are constructed for a scalar field in the Gaussian approximation at large proper time. These solutions describe the late proper time stages of the expansion of a meson gas with boost invariant boundary conditions. The relevance of these solutions for the formation of a disoriented chiral condensate in ultra relativistic collisions is discussed. (author). 16 refs. (Atomindex citation 29:006407)