 Solution

ID: past-exam-of-the-mathematics-course-of-the-university-of-cambridge/2026/ii/paper-4/33a/a/iii/solution

Codex  0 Created 2026-09-24 Updated 2026-09-25

The alternative complete commuting set is

H_{0}, L^{2}, S^{2}, J^{2}, J_{z}

, since these operators mutually commute. Clebsch-Gordan coefficients give the unitary change of basis.

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