quantum computer: Quick Facts

Written and fact-checked by

The Information Architects of Encyclopaedia Britannica

Last updated

Nov. 12, 2026

News •

Inside this quantum computer, memory vibrates like a guitar string • Nov. 11, 2026, 9:36 PM ET (Science Daily)

A tiny supercurrent could unlock quantum information without destroying it • Nov. 2, 2026, 3:00 AM ET (Science Daily)

Scientists overcome a hidden obstacle to more powerful quantum computers • Oct. 25, 2026, 9:44 PM ET (Science Daily)

A tiny defect in a crystal reveals a big quantum surprise • Oct. 23, 2026, 6:35 AM ET (Science Daily)

A quantum computing feat brings the ‘megaquops’ era a step closer • Oct. 20, 2026, 9:00 AM ET (Science News)

Videos

quantum entanglement, or Einstein's “spooky action at a distance”

How does a quantum computer work?

See All Videos →

Topics

qubit How do quantum computers work?quantum entanglement quantum mechanics computer DNA computing zombie computer artificial intelligence supercomputer computer memory computer graphics digital computer motherboard Zuse computer GIS

Dig Deeper: More Articles That Discuss This Topic

computer: Quantum computing

Key People

John M. Martinis

John M. Martinis

American physicist

David Wineland, 2012.

David Wineland

American physicist

computer chip. computer. Hand holding computer chip. Central processing unit (CPU). history and society, science and technology, microchip, microprocessor motherboard computer Circuit Board

Computers and Technology Quiz

Technician operates the system console on the new UNIVAC 1100/83 computer at the Fleet Analysis Center, Corona Annex, Naval Weapons Station, Seal Beach, CA. June 1, 1981. Univac magnetic tape drivers or readers in background. Universal Automatic Computer

Computers and Operating Systems