Titlebook: Density Matrix Theory and Applications; Karl Blum Book 1981 Springer Science+Business Media New York 1981 Matrix.Matrix Theory.density.fie

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Drogenabhängigkeit und Substitution state determined by external conditions such as temperature. This gradual evolution into an equilibrium state is called a .. In the present chapter we will consider some methods for studying processes of this kind.

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Quantum Theory of Relaxation, state determined by external conditions such as temperature. This gradual evolution into an equilibrium state is called a .. In the present chapter we will consider some methods for studying processes of this kind.

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Unterstützung suchen und Hilfe annehmen operators. This method provides a well-developed and efficient way of using the inherent symmetry of the system. It also enables the consequences of angular momentum conservation to be simply allowed for and enables dynamical and geometrical factors in the equation of interest to be separated from each other.

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Coupled Systems, correlations, and spindepolarization effects. In Sections 3.1 and 3.2 we will describe the general theory which is required and in Sections 3.3, 3.4, and 3.5 we will give specific examples which illustrate the meaning and application of the theorems.

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Book 1981interest is incompletely determined; for example, it may have no more than a certain probability of being in the precisely defined dynamical state characterized by a state vector. Because of this incomplete knowledge, a need for statistical averaging arises in the same sense as in classical physics.

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Coupled Systems,ons between a quantum system and an external . field. In this chapter we will consider the problem of describing the state of a quantum system which is interacting with other (detected or undetected) . systems. This is an important topic and is of central importance to the following discussions in t

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