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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Yet, fundamental problems remain with this theory, such as the unexplained nature of dark energy and dark matter, the singularity at the Big Bang, and inconsistencies between general relativity and quantum mechanics.
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Victoria Corless, Space.com, 24 June 2025
How quantum histories interfere One of the most famous demonstrations of the mysterious nature of quantum mechanics is called the double-slit experiment.
—Matt Von Hippel, ArsTechnica, 23 June 2025
These futuristic machines harness the strange properties of quantum mechanics to perform specific types of calculations exponentially faster than even the most powerful supercomputers.
—Bernard Marr, Forbes.com, 12 June 2025
Quantum computing is a rapidly-developing area of computer science that uses quantum mechanics to solve problems too complex for traditional binary computers.
—Julie Coleman, CNBC, 11 June 2025
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Victoria Corless, Space.com, 24 June 2025
How quantum histories interfere One of the most famous demonstrations of the mysterious nature of quantum mechanics is called the double-slit experiment.
—Matt Von Hippel, ArsTechnica, 23 June 2025
These futuristic machines harness the strange properties of quantum mechanics to perform specific types of calculations exponentially faster than even the most powerful supercomputers.
—Bernard Marr, Forbes.com, 12 June 2025
Quantum computing is a rapidly-developing area of computer science that uses quantum mechanics to solve problems too complex for traditional binary computers.
—Julie Coleman, CNBC, 11 June 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 5 Jul. 2025.
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