= Quantum mechanical entropy
{wiki=Category:Quantum_mechanical_entropy}
Quantum mechanical entropy is a measure of the uncertainty or disorder associated with a quantum system. In classical thermodynamics, entropy quantifies the amount of disorder in a system or the number of microstates corresponding to a particular macrostate. In quantum mechanics, the concept of entropy is extended to accommodate the principles of quantum theory, especially in the context of quantum states and mixtures.
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