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The Chemical Educator

ISSN: 1430-4171 (electronic version)

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Abstract Volume 10 Issue 6 (2005) pp 424-426

Illustrating the Superposition Principle with Single-Photon Interference

Frank Rioux

Department of Chemistry, St. John’s University, College of St. Benedict, St. Joseph, MN 56374,
Received July 25, 2005. Accepted Oct 7, 2005.

Published online: 17 Novenber 2005

Abstract. Single-photon interference in a Mach–Zehnder interferometer is used to illustrate the superposition principle. Three methods of analysis of an historically important experiment are presented at a level appropriate for an undergraduate course in quantum chemistry or physics. The importance of the superposition principle in chemistry is also discussed.

Key Words: In the Classroom; physical chemistry; quantum chemistry

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Issue date: December 1, 2005

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