2006年5月24日 · I have done most of the problem in this word document (attached). I have some trouble though. In my QM class, we assumed that the z component of angular momentum Lz satisfies, Lz Ylm = m hbar Ylm and the ladder operator L+ and L- were defined as L+_ = Lx +- iLy. We were able to find the eigen values of Lx and Ly using the ladder operators.

2010年12月12日 · This might be a basic question, but I'm having some difficulty understanding expectation values and ladder operators for angular momentum. = ? I know that L+ = Lx+iLy, but I don't know what the expectation value would be? Someone told …

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2018年10月18日 · While separating variables in the Schrodinger Equation for hydrogen atom, why are we taking separation constant to be l(l+1) instead of just l^2 or -l^2, is it just to make the angular equation in the form of Associated Legendre Equation or is there a deeper meaning to it?

2017年7月19日 · Homework Statement I was going through Sakurai's textbook and I tried to work out by myself the following expression for the Clebsch-Gordan coefficients...

2024年4月1日 · Stack Exchange Network. Stack Exchange network consists of 183 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers.

Stack Exchange Network. Stack Exchange network consists of 183 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers.

2018年4月3日 · In a question, it is given that L is a finite language over the unary alphabet and L+ is not regular. We know that L+ = LL* Since L is finite, it must be regular because all finite languages are regular. If L is regular L* is also regular. Then how can be L+ not regular? It is the concatenation of two regular languages. Where am I wrong?

2020年9月29日 · See the first post in the previous thread ‘Matrices from Spherical Harmonics with Eigenvalue l+1’ first. Originally when I came across the Lxyz operator and the Rlm matrices I had a different question. If this had to do with something like the quantum Hydrogen atom then why did it appear that...

2011年3月24日 · Your question lacks naming the system for which the Schrödinger's equation is used. If it was for the hydrogen atom, it may be worthy to know that the total angular momentum is a constant of motion and the H_{dum