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Quantum Physics

arXiv:1801.00862 (quant-ph)
[Submitted on 2 Jan 2018 (v1), last revised 31 Jul 2018 (this version, v3)]

Title:Quantum Computing in the NISQ era and beyond

Authors:John Preskill
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Abstract:Noisy Intermediate-Scale Quantum (NISQ) technology will be available in the near future. Quantum computers with 50-100 qubits may be able to perform tasks which surpass the capabilities of today's classical digital computers, but noise in quantum gates will limit the size of quantum circuits that can be executed reliably. NISQ devices will be useful tools for exploring many-body quantum physics, and may have other useful applications, but the 100-qubit quantum computer will not change the world right away --- we should regard it as a significant step toward the more powerful quantum technologies of the future. Quantum technologists should continue to strive for more accurate quantum gates and, eventually, fully fault-tolerant quantum computing.
Comments: 20 pages. Based on a Keynote Address at Quantum Computing for Business, 5 December 2017. (v3) Formatted for publication in Quantum, minor revisions
Subjects: Quantum Physics (quant-ph); Strongly Correlated Electrons (cond-mat.str-el)
Cite as: arXiv:1801.00862 [quant-ph]
  (or arXiv:1801.00862v3 [quant-ph] for this version)
  https://doi.org/10.48550/arXiv.1801.00862
Journal reference: Quantum 2, 79 (2018)
Related DOI: https://doi.org/10.22331/q-2018-08-06-79

Submission history

From: John Preskill [view email]
[v1] Tue, 2 Jan 2018 23:43:08 UTC (23 KB)
[v2] Sat, 27 Jan 2018 23:46:40 UTC (23 KB)
[v3] Tue, 31 Jul 2018 21:46:33 UTC (38 KB)
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