Basic Quantum-Mechanical Equipment
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Quantum theoretical description of quantum objects differs essentially from the classical description. Quantum theory, unlike the classical theory, is a statistical theory in principle. The laws of quantum theory do not govern the actual behavior of a particular object, but give the probability of the various ways in which the object may behave as a result of an interaction with its surroundings. Several postulates form the basis of the quantum description of physical phenomena.
KeywordsQuantum State Density Matrix Pure State Commutation Relation Adiabatic Approximation
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