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
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Many researchers think quantum computers are at an advantage here, because the process of classically ruling out insignificant configurations can get prohibitively difficult. Quanta Magazine, 29 May 2026 In a world with a capable quantum computer, that broadcast window — roughly ten minutes on Bitcoin, sometimes longer — becomes an attack window. Sandy Peng, Forbes.com, 28 May 2026 The resulting mess of colors and splotches would be impossible to put back together, even using a quantum computer, according to the research. Adam Kovac, Scientific American, 27 May 2026 This is possible because quantum computers use quantum bits (qubits) that can store multiple values simultaneously (0 or 1) and perform computations in parallel. Ameya Paleja, Interesting Engineering, 26 May 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

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Cite this Entry

“Quantum computer.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/quantum%20computer. Accessed 4 Jun. 2026.

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