quantum computer

noun

: a computer that takes advantage of the quantum properties of qubits to perform certain types of calculation extremely quickly compared to conventional computers
quantum computing noun
A "geek at heart," Samet, 34, is fascinated by quantum computing, a still-emerging field that involves the behavior of subatomic particles in computing. —Karen Breslau

Examples of quantum computer in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
These interactions cause decoherence, gradually disrupting the delicate quantum properties such as superposition and entanglement—that give quantum computers their power. — Rupendra Brahambhatt, Interesting Engineering, 25 July 2026 For example, the country doesn’t yet host its own operational quantum computers, although Kucukbas says that delivery of the first of several machines is imminent. — Dr. Jonathan Reichental, Forbes.com, 25 July 2026 PsiQuantum is getting a $125 million cash infusion from DARPA, the startup announced today, a new vote of confidence for its efforts to build the world’s first large-scale quantum computer. — Reed Albergotti, semafor.com, 22 July 2026 The first countries and companies to build quantum computers that can outperform classical computers will have significant power over others. — Aldo Romero, The Conversation, 15 July 2026 See All Example Sentences for quantum computer

Word History

First Known Use

1982, in the meaning defined above

Time Traveler
The first known use of quantum computer was in 1982

Rhymes for quantum computer

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Browse Nearby Words

quantum chromodynamics
quantum computer
quantum dot
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Cite this Entry

“Quantum computer.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/quantum%20computer. Accessed 31 Jul. 2026.

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