Open quantum system approach for heavy quark thermalization*

Abstract We treat heavy quark as an open quantum system in a hot medium and rederive the stochastic Schrödinger equation (SSE) from full for both quarks medium. apply SSE to dynamical evolutions of (as system) static environment). Heavy interact with via random scatterings, which exchange momentum phase factor randomly between two wave functions environment. The results transition different eigenstates system. These are included external potential Hamiltonian SSE. Stochastic evolved potential. mean corresponding distributions obtained after ensemble average over large set functions. present thermalization coupling strengths.