Author/Authors :
M.E. Carrington، نويسنده , , Hou Defu، نويسنده , , R. Kobes، نويسنده ,
Abstract :
We study quadratic response in weakly coupled nonequilibrium φ4 theory in the context of both classical transport theory and real time quantum field theory. A novel connection between these two approaches is established which provides a diagrammatic interpretation of quadratic shear viscous response.