Talk:Clebsch-Gordan coefficients: Difference between revisions

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imported>Jitse Niesen
imported>Jitse Niesen
(from-WP flag?)
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Incidentally, the book we used when learning quantum mechanics (Quantum Physics by Stephen Gasiorowicz) calls them Wigner coefficients; is it just a strange book or is that name really used or are Wigner coefficients something subtly different? -- [[User:Jitse Niesen|Jitse Niesen]] 06:47, 30 July 2008 (CDT)
Incidentally, the book we used when learning quantum mechanics (Quantum Physics by Stephen Gasiorowicz) calls them Wigner coefficients; is it just a strange book or is that name really used or are Wigner coefficients something subtly different? -- [[User:Jitse Niesen|Jitse Niesen]] 06:47, 30 July 2008 (CDT)
And another question: the [http://en.citizendium.org/wiki?title=Clebsch-Gordan_coefficients&action=history edit history] shows that the from-wp flag suddenly disappears. Was this done on purpose? -- [[User:Jitse Niesen|Jitse Niesen]] 07:11, 30 July 2008 (CDT)

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 Definition appear in total angular momentum eigenstates when written in terms of angular momentum states of subsystems. [d] [e]
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From Wikipedia, I changed the lead, added equation for explicit expression (plus discussion) and one special case.--Paul Wormer 03:45, 22 August 2007 (CDT)

Confusement

In the original WP text the i in j i could stand for x, y, or z, or for "particle number" 1 or 2. In some situations this was confusing, so I introduced x, y and z.--Paul Wormer 07:32, 7 October 2007 (CDT)

Notation of eigenstates

Is there a difference between the states and ? I guess not, because the latter notation appears in the orthogonality relation

without any comment. I find it rather confusing that both notations appear in the definition

for the CG coeffs. -- Jitse Niesen 06:37, 30 July 2008 (CDT)

Incidentally, the book we used when learning quantum mechanics (Quantum Physics by Stephen Gasiorowicz) calls them Wigner coefficients; is it just a strange book or is that name really used or are Wigner coefficients something subtly different? -- Jitse Niesen 06:47, 30 July 2008 (CDT)

And another question: the edit history shows that the from-wp flag suddenly disappears. Was this done on purpose? -- Jitse Niesen 07:11, 30 July 2008 (CDT)