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quantum theory
noun
1
: a theory in physics based on the concept of the subdivision of radiant energy into finite quanta and applied to numerous processes involving transference or transformation of energy in an atomic or molecular scale
Examples of quantum theory in a Sentence
Recent Examples on the Web
By integrating concepts from quantum theory and relativity, these financial networks could move data and value across borders faster than ever imagined, all while ensuring privacy, security and transparency.
—Eric Solis, Forbes, 23 Oct. 2024
Scientists looking at things like black holes and quantum theory are suggesting that o1 is going to help them more than previous models.
—John Werner, Forbes, 11 Oct. 2024
But the quantum theories that describe the real particles of our world put variables in the numerator too.
—Charlie Wood, Quanta Magazine, 25 Sep. 2024
But Tang and company used techniques far removed from quantum theory.
—Ben Brubaker, WIRED, 22 Sep. 2024
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Word History
First Known Use
1912, in the meaning defined at sense 1
Dictionary Entries Near quantum theory
Cite this Entry
“Quantum theory.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/quantum%20theory. Accessed 19 Nov. 2024.
Kids Definition
quantum theory
noun
: a theory in physics based on the idea that radiant energy (as light) is composed of small separate packets of energy
Medical Definition
quantum theory
noun
: a theory in physics based on the concept of the subdivision of radiant energy into finite quanta and applied to numerous processes involving transference or transformation of energy in an atomic or molecular scale
More from Merriam-Webster on quantum theory
Nglish: Translation of quantum theory for Spanish Speakers
Britannica.com: Encyclopedia article about quantum theory
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