The paper consists of a short survey of some results concerning the physical interpretation the basic equations for quantum open systems. The concept of a continuous medium for quantum systems is introduced. From this point of view the question of completeness description and the hidden parameters (scales) for quantum open systems is considered. The Heisenberg uncertainty principle in the physics of open quantum systems is represented. The question: Is the concept of "pure ensemble" justified in quantum mechanics is also discussed.
The paper consists in a short survey of some results con- cerning the physical interpretation of the basic equations for quantum open systems. The concept of the continuous medium for quantum systems is intro- duced. From this point of view the question of completeness descrip- tion and the hidden parameters (scales) for the quantum open systems is considered. The Heisenberg uncertainty principle in the physics of open quantum systems is represented. The question: Is the consept of pure ensemble justifled in quantum mechanics is also discussed.