quantum mechanics
noun
plural in form but singular or plural in construction
: a theory of matter that is based on the concept of the possession of wave properties by elementary particles, that affords a mathematical interpretation of the structure and interactions of matter on the basis of these properties, and that incorporates within it quantum theory and the uncertainty principle
called also wave mechanics
quantum mechanical
adjective
quantum mechanically
adverb
Examples of quantum mechanics in a Sentence
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The technology utilizes quantum mechanics to address problems that traditional computers are unable to solve.
—
Samantha Subin, CNBC, 24 Oct. 2025
Using photons to create keys This technology harnesses the principles of quantum mechanics, using photons—individual particles of light—to create cryptographic keys that are practically impossible to intercept without detection.
—Aman Tripathi, Interesting Engineering, 10 Oct. 2025
The realization of such quantum machines would require experimenters having access to reliable physical components that can be assembled and controlled on the human scale, yet fully obey quantum mechanics.
—Zhixin Wang, The Conversation, 10 Oct. 2025
The idea of waves propagating through a barrier has been around for a long time, since before the existence of quantum mechanics.
—Ethan Siegel, Big Think, 8 Oct. 2025
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Samantha Subin, CNBC, 24 Oct. 2025
Using photons to create keys This technology harnesses the principles of quantum mechanics, using photons—individual particles of light—to create cryptographic keys that are practically impossible to intercept without detection.
—Aman Tripathi, Interesting Engineering, 10 Oct. 2025
The realization of such quantum machines would require experimenters having access to reliable physical components that can be assembled and controlled on the human scale, yet fully obey quantum mechanics.
—Zhixin Wang, The Conversation, 10 Oct. 2025
The idea of waves propagating through a barrier has been around for a long time, since before the existence of quantum mechanics.
—Ethan Siegel, Big Think, 8 Oct. 2025
See All Example Sentences for quantum mechanics
Cite this Entry
“Quantum mechanics.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/quantum%20mechanics. Accessed 31 Oct. 2025.
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