The Double Slit Experiment:Particle or Wave? (or both?)


Published: Jan 12, 2026
Keywords:
Physics Quantum Mechanics students’ research experiment
Omiros Papadopoulos
Abstract

Name: Omiros (Homer) Papadopoulos
Title: The Double Slit Experiment: Particle or Wave? (Or both?)
Abstract: One of the most famous and oldest Quantum Physics experiments, the
double slit experiment, demonstrated that light acts both as particles, as well as
waves. First executed in 1801 by Thomas Young, it additionally proved that other particles
can act in the same way, and played a vital role in the development of Particle
physics. This presentation will explain both the science behind it, as well as featuring
a demonstration of the experiment itself.
The Presentation involves a theoretical segment and a practical segment, where the
experiment is demonstrated.

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References
• Sir Isaac Newton. 1704. Project Gutenberg ebook released 23 August 2010.
• Paolo Mancoso, “Acoustics and Optics,” in The Cambridge History of Science Volume 3: Early Modern Science ed. Katharine Park and Lorraine Daston (Cambridge: Cambridge University Press, 2006), 623-626.
• C.S. Peirce (July 1879). "Note on the Progress of Experiments for Comparing a Wave-length with a Meter". American Journal of Science, as referenced by Crease, Robert P. (2011). World in the Balance: The historic quest for an absolute system of measurement. New York: W.W. Norton. p. 317. ISBN 978-0-393-07298-3. p. 203.