Timeline of Quantum Computing

Big picture

Time period	Development summary
1960	Stephen Wiesner invents conjugate coding.
1995	Christopher Monroe and David Wineland at NIST (Boulder, Colorado) experimentally realize the first quantum logic gate – the controlled-NOT gate – with trapped ions, following the Cirac-Zoller proposal. ^[1]
2012	John Preskill coins the term "quantum supremacy" to describe the point where quantum computers can do things that classical computers can’t.^[2]
2017-03-04	Quantum volume is proposed as a measure of the power of quantum computers.^[3]
2019-08	Google uses a device with 53 qubits to solve a carefully chosen problem in 3 minutes 20 seconds, which took 2.5 days to solve with a classical computer.^[2]

↑ Monroe, C; Meekhof, D. M; King, B. E; Itano, W. M; Wineland, D. J (December 18, 1995). "Demonstration of a Fundamental Quantum Logic Gate" (PDF). Physical Review Letters. 75 (25): 4714–4717. Bibcode:1995PhRvL..75.4714M. PMID 10059979. doi:10.1103/PhysRevLett.75.4714. Retrieved December 29, 2007.
↑ ^2.0 ^2.1 "Why I Coined the Term 'Quantum Supremacy'". Wired. ISSN 1059-1028. Retrieved 2020-02-22.
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