why do we relate spin with angular momentum operator in quantum mechanics?
7909
What is spin as it relates to subatomic particles?
94717
Systems in quantum mechanics solved by ladder operator method
108657
Cross product of the quantum mechanical operators $\textbf{p}$ and $\textbf{A}$
14867
How to interpret $\langle x|\hat Q|x'\rangle$ for a quantum mechanical operator $\hat Q$?
28946
Derivation of Spin Lagrangian
86295
Creation and annihilation operators in the hydrogen atom
29174
Trouble with operator-sum representation of a quantum operation
108351
Derivation of position operator in QM
141507
Number of different possible values for the total angular momentum quantum number, $j$?
147491
When is separating the total wavefunction into a space part and a spin part possible?
103525
Square root of Pauli operators: is there a common convention to define them uniquely?
62693
Eigenspaces of angular momentum operator and its square (Casimir operator)
52785
Definition respective derivation of angular momentum formula
155484
Quantum mechanical picture of "electrons orbiting the nucleus"
59282
What is the significance of angular frequency $\omega$ with regards to wave functions?
147676
Quantised Angular Momentum?
77742
Queries about rotational groups $\mathrm{SO}(3)$ and $\mathrm{SU}(2)$ in QM