2
Postulates of Quantum Mechanics
The Axiomatic Core
States, observables, the Born rule, unitary evolution, composite systems, symmetries, density matrices, the reduced density operator, and von Neumann entropy.
Lessons
2.1
The State Postulate
2.2
The Observable Postulate
2.3
The Born Rule
2.4
Unitary Time Evolution
2.5
Composite Systems and Tensor Products
2.6
Symmetries and Conservation Laws
2.7
Density Matrices and Mixed States
2.8
Reduced Density Operator and Partial Trace
2.9
Von Neumann Entropy and Mutual Information
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