Good quantum number
id:
good-quantum-number-197-5525252
title:
Good quantum number
text:
In quantum mechanics, the eigenvalue q of an observable O is said to be a good quantum number if the observable O is a constant of motion. In other words, the quantum number is good if the corresponding observable commutes with the Hamiltonian. If the system starts from the eigenstate with an eigenvalue q , it remains on that state as the system evolves in time, and the measurement of O always yields the same eigenvalue q . Good quantum numbers are often used to label initial and final states in
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https://en.wikipedia.org/wiki/Good_quantum_number
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date modified:
2024-03-08T11:34:54Z
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{"identifier":"Q5583136","url":"https://www.wikidata.org/entity/Q5583136"}
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