Srednicki — Quantum Field Theory · Problem 64.1

Canonical Quantization of Scalar Fields — Mark Srednicki

Physics — QFT · magnetic-moment-orbital-angular-momentum

Problem

Let the wave packet be f(p)∼exp⁡(−a2p2/2)Yℓm(p^)f(\mathbf{p}) \sim \exp(-a^2\mathbf{p}^2/2)Y_{\ell m}(\hat{\mathbf{p}}), where Yℓm(p^)Y_{\ell m}(\hat{\mathbf{p}}) is a spherical harmonic. Find the contribution of the orbital angular momentum to the magnetic moment.

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