1997/03/03 by Herbert Nachbagauer, Nachbagauer, Herbert
Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #High Energy Physics - Theory (hep-th) #hep-ph #hep-th
paper · pdf · doi:10.48550/arxiv.hep-th/9703018
9 Pages, 1 epsf figure
arxiv created 1997/03/03 · arxiv updated 2009/11/30
Starting from the von Neumann equation, we construct the quantum evolution equation for the effective action for systems in mixed states. This allows us to find the hierarchy of equations which describe the time evolution of equal time correlators. The method is applied explicitly to a scalar theory with quartic self-interaction.