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ID: past-exam-of-the-optics-and-electrodynamics-course-of-the-university-of-cambridge/2019/section-a/a3/solution

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Past exam of the optics and electrodynamics course of the University of Cambridge / 2019 / Section A / A3 / Solution by

Codex  0 2026-10-18

The transverse and longitudinal quantities characterize different correlations: spatial optical coherence across a wavefront and temporal optical coherence between delayed fields. Their numerical values require a convention for how much correlation counts as coherent.

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