John Rarity

John Rarity

John G. Rarity is Professor of optical communication systems in the department of Electrical and Electronic Engineering at the University of Bristol, a post he has held since 1 January 2003 [cite web | title = University News — New chairs | url = http://www.bristol.ac.uk/cms/pro/newsletter/news_apr_2003_issue_19.pdf | publisher = University of Bristol | month = April | year = 2003 | accessdate = 2006-07-25 | format = pdf | pages = 9] . He is an international expert on quantum optics, quantum cryptography and quantum communication using single photons and entanglement. Professor Rarity is a member of the [http://www.cs.bris.ac.uk/Research/QuantumComputing/ Quantum Computation and Information group] at the University of Bristol.

Research

Prior to moving to the University of Bristol in 2001, Rarity worked as a physicist at the Defence Evaluation and Research Agency (DERA) arm of the UK Ministry of Defence.

Notable early achievements while at DERA included demonstrations of quantum interference and non-locality over large distances, demonstrating a violation of Bell's Inequality over 4km of optical fibre in 1994. These experiments were followed by work in quantum cryptography, resulting in his team at DERA setting a world record of 1.9 km range for free space secure quantum cryptography [cite pressrelease | url = http://www.quiprocone.org/pressrelease_JRarity.htm | title = DERA Scientists achieve world record 1.9km range for free-space secure key exchange using quantum cryptography | date = January 2001 | publisher = DERA | accessdate = 2006-07-25] . A collaboration with Ludwig-Maximilian University, Munich in 2002 successfully demonstrated an open air quantum cryptography experiment over a distance of 23.4km.

Since moving to the University of Bristol, Professor Rarity has built up a substantial group working in experimental quantum optics. One project which has received substantial publicity recently in collaboration with the Quantum Information Processing group at HP Labs is developing affordable quantum key distribution systems [cite journal | url = http://technology.newscientist.com/channel/tech/mg19626296.600-quantum-atm-rules-out-fraudulent-web-purchases.html | title = 'Quantum ATM' rules out fraudulent web purchases] . The scheme reduces the cost by using pulsed LEDs rather than lasers for the source of transmitted qubits [cite journal | author = J. L. Duligall, M. S. Godfrey, K. A. Harrison, W. J. Munro, J. G. Rarity | title = Low Cost and Compact Quantum Cryptography | id = New J. Phys. 8 No 10 (October 2006) 249] .

In 2007 Professor Rarity has also collaborated in a demonstration of quantum key distribution using free space optical communications over 144 km [cite journal | author = R. Ursin, F. Tiefenbacher, T. Schmitt-Manderbach, H. Weier, T. Scheidl, M. Lindenthal, B. Blauensteiner, T. Jennewein, J. Perdigues, P. Trojek, B. Ömer, M. Fürst, M. Meyenburg, J. Rarity, Z. Sodnik, C. Barbieri, H. Weinfurter, A. Zeilinger | title = Entanglement-based quantum communication over 144 km | id = Nature Physics 3, 481 - 486 (01 Jul 2007)] between the islands of Tenerife and La Palma.

Bibliography

Books

*cite book | title = Microcavities and Photonic Bandgaps: Physics and Applications | author = NATO Scientific Affairs Division | editor = C. Cargese, C. Weisbuch and John Rarity (Editors) | publisher = Springer | date = August 31 1996 | id = ISBN 0-7923-4170-8

Highly cited papers

*cite journal | title=Practical quantum cryptography based on two-photon interferometry | author = Artur K. Ekert, John G. Rarity, Paul R. Tapster, G. Massimo Palma | journal = Physical Review Letters | volume = 69 | pages=1293–1295 | year=1992 | doi= 10.1103/PhysRevLett.69.1293
*cite journal | title = Experimental violation of Bell's inequality based on phase and momentum | author = J. G. Rarity and P. R. Tapster | journal = Physical Review Letters | volume = 64 | pages = 2495–2498 | year = 1990 | doi= 10.1103/PhysRevLett.64.2495

External links

* [http://www.bris.ac.uk/eeng/department/staff/jgr.html Staff page] at Bristol University
* [http://www.bris.ac.uk/eeng/research/oph/ Bristol University research page]
* [http://scholar.google.com/scholar?hl=en&lr=&q=%22John+Rarity%22&btnG=Search Google Scholar list of papers]
* [http://www.cs.bris.ac.uk/Research/QuantumComputing/member.jsp?member=John%20Rarity List of recent publications] , as given by the QCI UoB

References


Wikimedia Foundation. 2010.

Игры ⚽ Поможем сделать НИР

Look at other dictionaries:

  • Rarity — can refer to:* something that is rare or scarcePeople, including: *John Rarity, English physicist …   Wikipedia

  • John Davey (tree surgeon) — John Davey (June 6, 1846 November 8, 1923), considered the father of the science of tree surgery, was born in 1846 in Somersetshire, England. Although he did not learn the alphabet until his early 20s, his sharp intellect and analytical skills… …   Wikipedia

  • John Sitilides — has specialized in federal strategies, international affairs and media relations in Washington, D.C., California and New York for more than two decades. As Principal of Trilogy Advisors [http://www.trilogyadvisors.net/] , a government relations… …   Wikipedia

  • John Payne Collier — (January 11, 1789 – September 17, 1883), English Shakespearian critic and forger, was born in London.Reporter and solicitorHis father, John Dyer Collier (1762–1825), was a successful journalist, and his connection with the press obtained for his… …   Wikipedia

  • John Pappageorge — (born July 19, 1931) [ Michigan Leglislature, State Representative John Pappageorge, http://www.legislature.mi.gov/(S(fsecftn13sid5az4tza3ixm0))/documents/publications/manual/2003 2004/2003 mm 0233 0233 Pappageorge.pdf (accessed August 16,… …   Wikipedia

  • John F. Kennedy Boulevard (Tampa, Florida) — John F. Kennedy Boulevard (better known as Kennedy Boulevard), is a major east west corridor in Tampa, Florida. It carries the State Road 60 designation through its entire route.Some places of interest that can be accessed from this route include …   Wikipedia

  • John Dumphreys — John Molesworth Thomas Dumphreys (24 December 1844 ndash; 18 December 1925) was a British Conservative politician. He was elected Member of Parliament for Bermondsey in a 1909 by election, but weeks later lost the seat to the Liberals at the… …   Wikipedia

  • John Marshall — For other people named John Marshall, see John Marshall (disambiguation). John Marshall John Marshall in 1831 by Henry Inman 4th Chief Justice of the Supreme Court of the United States …   Wikipedia

  • John R. Winder — [ thumb|First Presidency in 1901 L R: John R. Winder, First Counselor; Joseph F. Smith, President; John Henry Smith, Second Counselor] John Rex Winder (pron en|ˈwɪndər, 1821 ndash; 1910) was a leader and general authority of The Church of Jesus… …   Wikipedia

  • John Thompson III — College coach infobox Name = John Thompson III Caption = DateOfBirth = birth date and age|1966|3|12 Birthplace = flagicon|United States Washington, D.C. Sport = Basketball College = Georgetown Title = Head coach CurrentRecord = 72 30 (.706)… …   Wikipedia

Share the article and excerpts

Direct link
… Do a right-click on the link above
and select “Copy Link”