Optics2026-08-012 minarXiv:2608.00618expressAn Event Takes ShapeIn the familiar picture of the world, an event is a point on the map of spacetime: 'here and now,' with no size or internal structure.Yiming Pan·Guowei Chende Broglie formulaLouis de BroglieArthur ComptonErwin Schrödingerphotonic crystalswave-particle dualitydifferential formspacetime curvature👍👎☆SimplePopularAdvanced