Superconducting quantum computing: Difference between revisions

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{{Short description|QuantumApplication computingof Quantum implementationComputing}}

'''Superconducting quantum computing''' is a branch of [[Solid-state physics|solid state]] physics and quantum computing that implements [[superconductivity|superconducting]] [[electronic circuit]]s using superconducting qubits as artificial atoms, or [[quantum dot]]s. For superconducting qubits, the two logic states are the [[ground state]] and the [[excited state]], denoted <math>|g\rangle \text{ and } |e\rangle</math>respectively.<ref name="docs.pennylane.ai" /> Research in superconducting quantum computing is conducted by companies such as [[Google]],<ref>{{cite journal |last1=Castelvecchi |first1=Davide |title=Quantum computers ready to leap out of the lab in 2017 |journal=Nature |date=5 January 2017 |volume=541 |issue=7635 |pages=9–10 |doi=10.1038/541009a|pmid=28054624 |bibcode=2017Natur.541....9C |s2cid=4447373 |doi-access=free }}</ref> [[IBM]],<ref name="IBM">{{cite web |title=IBM Makes Quantum Computing Available on IBM Cloud |url=https://www-03.ibm.com/press/us/en/pressrelease/49661.wss |archive-url=https://web.archive.org/web/20160504214945/http://www-03.ibm.com/press/us/en/pressrelease/49661.wss |url-status=dead |archive-date=May 4, 2016 |website=www-03.ibm.com |date=4 May 2016}}</ref> [[IMEC]],<ref>{{Cite web|url=https://www.imec-int.com/en/articles/imec-enters-the-race-to-unleash-quantum-computing-with-silicon-qubits|title=Imec enters the race to unleash quantum computing with silicon qubits|website=www.imec-int.com|language=en|access-date=2019-11-10}}</ref> [[BBN Technologies]],<ref>Colm A. Ryan, Blake R. Johnson, Diego Ristè, Brian Donovan, Thomas A. Ohki, "Hardware for Dynamic Quantum Computing", arXiv:1704.08314v1</ref> [[Rigetti Computing|Rigetti]],<ref>{{Cite news|url=https://www.hpcwire.com/2018/09/07/rigetti-launches-quantum-cloud-services-announces-1million-challenge/|title=Rigetti Launches Quantum Cloud Services, Announces $1Million Challenge|date=2018-09-07|work=HPCwire|access-date=2018-09-16|language=en-US}}</ref> and [[Intel]].<ref>{{cite news |title=Intel Invests US$50 Million to Advance Quantum Computing {{!}} Intel Newsroom |url=https://newsroom.intel.com/news-releases/intel-invests-us50-million-to-advance-quantum-computing/ |website=Intel Newsroom}}</ref> Many recently developed QPUs ([[quantum processing unit]]s, or quantum chips) use superconducting architecture.