Spin operator
= Spin operator
{title2=$\hat{\mathbf S}$}
A <spin operator> describes intrinsic <angular momentum>. Its components obey angular-momentum <commutators>; for spin one half, $\hat S_j=\hbar\sigma_j/2$ in terms of the <Pauli matrices>.
= Spin operator
{title2=$\hat{\mathbf S}$}
A <spin operator> describes intrinsic <angular momentum>. Its components obey angular-momentum <commutators>; for spin one half, $\hat S_j=\hbar\sigma_j/2$ in terms of the <Pauli matrices>.