English: John Rarity pioneered the experimental one-photon and two-photon optics, both to the study of fundamental physical phenomena and also in the development of prototype devices. This requires specially designed sources and detectors, the former including parametric down-conversion and single-deffect emitters. Rarity has made leading advances both to detector design and to such exotic sources and was, with his collaborators, for many years the sole UK representative in experimental quantum optics, his research telling us much about the nature of photons. He spotted early the potential for experimental quantum information and has become a leading figure in this field.

This work is free and may be used by anyone for any purpose. If you wish to use this content, you do not need to request permission as long as you follow any licensing requirements mentioned on this page. The Wikimedia Foundation has received an e-mail confirming that the copyright holder has approved publication under the terms mentioned on this page. This correspondence has been reviewed by a Volunteer Response Team (VRT) member and stored in our permission archive. The correspondence is available to trusted volunteers as ticket #2014062710019796. If you have questions about the archived correspondence, please use the VRT noticeboard. Ticket link: https://ticket.wikimedia.org/otrs/index.pl?Action=AgentTicketZoom&TicketNumber=2014062710019796 Find other files from the same ticket: