Angular momentum eigenstate
= Angular momentum eigenstate
{title2=$|j,m\rangle$}
A joint eigenstate $|j,m\rangle$ of $J^2$ and $J_z$, with eigenvalues $\hbar^2j(j+1)$ and $\hbar m$. Its allowed labels satisfy $j\in\{0,1/2,1,\ldots\}$ and $m=-j,-j+1,\ldots,j$.