Meanings
nounquantum supremacy (uncountable)
- uncountableThe potential ability of quantum computers to solve problems that are intractable for classical computers.
Google said on Wednesday that it had achieved a long-sought breakthrough called “quantum supremacy,” which could allow new kinds of computers to do calculations at speeds that are inconceivable with today’s technology.
2019 October 23, Cade Metz, “Google Claims a Quantum Breakthrough That Could Change Computing”, in New York Times
Origin
Coined by American theoretical physicist John Preskill in 2012.
Full word history & related roots →Cite this entry
APA
quantum supremacy. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/quantum%20supremacy
MLA
“quantum supremacy.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/quantum%20supremacy. Accessed November 4, 2026.
Chicago
WatkinsX Dictionary, s.v. “quantum supremacy,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/quantum%20supremacy.
Source: quantum supremacy on Wiktionary, CC BY-SA 4.0.