A scheme for efficient quantum computation with linear optics

Nature
E KnillG J Milburn

Abstract

Quantum computers promise to increase greatly the efficiency of solving problems such as factoring large integers, combinatorial optimization and quantum physics simulation. One of the greatest challenges now is to implement the basic quantum-computational elements in a physical system and to demonstrate that they can be reliably and scalably controlled. One of the earliest proposals for quantum computation is based on implementing a quantum bit with two optical modes containing one photon. The proposal is appealing because of the ease with which photon interference can be observed. Until now, it suffered from the requirement for non-linear couplings between optical modes containing few photons. Here we show that efficient quantum computation is possible using only beam splitters, phase shifters, single photon sources and photo-detectors. Our methods exploit feedback from photo-detectors and are robust against errors from photon loss and detector inefficiency. The basic elements are accessible to experimental investigation with current technology.

References

Jan 31, 1996·Biochimica Et Biophysica Acta·T SuzukiK Miyajima
Oct 1, 1995·Physical Review. a·P W Shor
Jan 6, 1986·Physical Review Letters·C K Hong, L Mandel
May 1, 1989·Physical Review Letters·G J Milburn
Mar 29, 1993·Physical Review Letters·C H BennettW K Wootters
Jul 4, 1994·Physical Review Letters·M ReckP Bertani
Dec 18, 1995·Physical Review Letters·Q A TurchetteH J Kimble
Feb 15, 1996·Optics Letters·G WeihsA Zeilinger

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Citations

Dec 7, 2010·Nano Letters·Xesús BendañaF Javier García de Abajo
Apr 30, 2011·Nano Letters·Chih-Wei HsuPer Olof Holtz
Oct 17, 2012·Nano Letters·Dan DalacuMichael E Reimer
Oct 11, 2002·Nature·Philippe Grangier
May 23, 2003·Nature·Jian-Wei PanAnton Zeilinger
May 14, 2004·Nature·M W MitchellA M Steinberg
Nov 27, 2004·Nature·Brian JulsgaardEugene S Polzik
Mar 11, 2005·Nature·P WaltherA Zeilinger
Oct 14, 2011·Nature·N K LangfordA Zeilinger
Dec 3, 2010·Nature Chemistry·B P LanyonA G White
Feb 3, 2011·Nature Communications·M HosseiniB C Buchler
Mar 3, 2011·Nature Communications·Alberto PeruzzoJeremy L O'Brien
Aug 4, 2011·Nature Communications·Xiao-Qi ZhouJeremy L O'Brien
Dec 1, 2011·Nature Communications·Andrea CrespiPaolo Mataloni
Mar 15, 2012·Nature Communications·Michael E ReimerVal Zwiller
Feb 7, 2013·Nature Communications·O GazzanoP Senellart
May 9, 2013·Nature Communications·Michael FörtschChristoph Marquardt
Oct 11, 2013·Nature Communications·M J CollinsB J Eggleton
Nov 2, 2013·Nature Communications·W B GaoA Imamoğlu
Dec 5, 2013·Nature Communications·R M StevensonA J Shields
Aug 13, 2013·Nature Nanotechnology·Reinier W HeeresValery Zwiller
Sep 16, 2009·Chemical Communications : Chem Comm·Cho-Long ParkSang-gi Lee
Jun 2, 2012·Physical Chemistry Chemical Physics : PCCP·Dawei LuJiangfeng Du
Aug 7, 2008·Proceedings of the National Academy of Sciences of the United States of America·Chao-Yang LuJian-Wei Pan
Nov 26, 2010·Proceedings of the National Academy of Sciences of the United States of America·Wei-Bo GaoJian-Wei Pan
Jun 8, 2011·Proceedings of the National Academy of Sciences of the United States of America·Ryo OkamotoShigeki Takeuchi
Aug 22, 2012·Philosophical Transactions. Series A, Mathematical, Physical, and Engineering Sciences·Robert Raussendorf
Oct 24, 2012·Philosophical Transactions. Series A, Mathematical, Physical, and Engineering Sciences·Hendra I Nurdin, John E Gough
Oct 24, 2012·Philosophical Transactions. Series A, Mathematical, Physical, and Engineering Sciences·John E GoughHendra I Nurdin
Dec 8, 2007·Science·Jeremy L O'Brien
Jun 26, 2007·Science·Tatjana WilkGerhard Rempe
Mar 1, 2008·Science·Ian A Walmsley
Mar 29, 2008·Science·Alberto PolitiJeremy L O'Brien
May 16, 2009·Science·O Jiménez FaríasP H Souto Ribeiro
Mar 13, 2010·Science·Luca SapienzaPeter Lodahl
Dec 22, 2012·Science·Justin B SpringIan A Walmsley
Feb 13, 2008·The Journal of Chemical Physics·Werner Scherer, Michael Mehring
Aug 3, 2012·The Review of Scientific Instruments·Zhizhong YanThomas Jennewein
Feb 20, 2014·Nature Communications·M B WardA J Shields

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