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When Light Behaves as Waves and Particles

Updated: Jun 18, 2021

Author: Ellie Wang

Editors: Vincent Chang and Kira Tian

Artists: Cici Zhang

The double-slit interference experiment of a single particle, an experiment that proves the wave-particle duality of light, is one that’s shocking. When a beam of light passes through the first slit, it breaks up. Then, it passes through the next two slits like two water waves. The encounter forms account interference, which proves that photons are volatile.

Scientists wondered what would happen if, according to classical physical principles, the light particles in this experiment passed through th