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Superposition principle (Read 2521 times)
Gerrit-Jan Linker
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Superposition principle
04.02.08 at 21:06:02
Superposition principle
Superposition principle or the linear superposition of states. A quantum mechanical system which can take on discrete states ψn is also able to occupy the state:
ψ = Σnanψn
Another way to define the superposition principle:
State functions form an infinite-dimensional complex vector space. A postulate is that the eigenfunctions of a Hermitian operator for a complete set that can be used as a basis set for such a vector space. So any function in that space can be written as a linear combination of the basis functions.
See also:
Quantum superposition
States and wave functions
Eigen functions and eigen vectors
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« Last Edit: 04.02.08 at 21:12:59 by Gerrit-Jan Linker »  

Gerrit-Jan Linker
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