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The Chemical Educator

ISSN: 1430-4171 (electronic version)

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Abstract Volume 7 Issue 6 (2002) pp 334-338

Information Entropy and Uncertainty Relations

Henry E. Montgomery, Jr.

Centre College, Danville, KY 40422-1394,
Received July 17, 2002. Accepted September 25, 2002

Published online: 4 October 2002

Abstract. Information entropy is introduced as a measure of quantum mechanical uncertainty. An uncertainty relation based on information entropy is obtained as an alternative to the Heisenberg inequality. In two typical examples, the entropic uncertainty relation is shown to be bounded in situations where the Heisenberg inequality diverges or grows too large to be useful.

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

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Article in PDF format (174 KB) HTML format new file 4/1/08 corrected reference 19

Issue date: December 1, 2002

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