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

Achieving a true quantum advantage in chemistry will likely require breakthroughs in both hardware and algorithms before quantum computers can surpass classical machines on these fundamental molecular calculations. —Rupendra Brahambhatt, Interesting Engineering, 14 Mar. 2026

But Signal, operated by a nonprofit, is far less popular and uses a complex type of encryption designed to be unbreakable, even by a theoretical advanced quantum computer. —Kevin Collier, NBC news, 9 Mar. 2026

At the top will be the most computationally intensive methods—prohibitively expensive on classical computers but tractable on quantum computers. —Chi Chen, IEEE Spectrum, 2 Mar. 2026

Caltech president Thomas Rosenbaum recently estimated a functioning fault-tolerant quantum computer could arrive within five to seven years. —Javier Bastardo, Forbes.com, 23 Feb. 2026

Word History

First Known Use

1982, in the meaning defined above

Rhymes for quantum computer

• microcomputer
• minicomputer
• supercomputer
• commuter
• polluter
• recruiter
• neuter
• pewter
• router
• scooter
• shooter
• suitor