On formation of equation of state of evolving quantum field
A. V. Leonidov+*×°, A. A. Radovskaya+
+Lebedev Physical Institute, 119991 Moscow, Russia
*Moscow Engineering Physics Institute, 115409 Moscow, Russia
×Moscow Institute of Physics and Technology, 141700 Dolgoprudny, Russia
°Institute for Theoretical and Experimental Physics, 117218 Moscow, Russia
Abstract
Stylized model of evolution of matter created in ultrarelativistic
heavy ion collisions is considered.
Systematic procedure of computing quantum corrections in the framework of
Keldysh formalism is formulated.
Analytical expressions for formation of equations of state taking into account
leading quantum corrections are worked out,
complete description of subleading corrections and analytical expressions for
some of them are presented.