The quantum langevin forces for dynamical systems with linear dissipation and the Lindblad equation

The general form of the quantum master equation (the Lindblad-Kossakowski equation) for linear and nonlinear systems with linear dissipation is considered. This equation and the quantum regression theorem are used for finding two-time commutators and symmetrized moments of the Langevin forces. The obtained properties of the forces are unusual for physical systems interacting with the environment systems.