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Our review article appears on Reviews of Modern Physics

Date: 2012-05-12

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Rev. Mod. Phys. 84, 777–838 (2012)

Multiphoton entanglement and interferometry

Abstract
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Jian-Wei Pan1,*, Zeng-Bing Chen1,†, Chao-Yang Lu1,‡, Harald Weinfurter2,3,§, Anton Zeilinger4,5,**, and Marek Żukowski6,7,1,††
1Hefei National Laboratory for Physical Sciences at Microscale and Department of Modern Physics, University of Science and Technology of China, Hefei, Anhui 230026, China
2Fakultät für Physik, Ludwig-Maximilians-Universität, D-80799 München, Germany
3Max-Planck-Institut für Quantenoptik, D-85748 Garching, Germany
4Vienna Center of Quantum Science and Technology (VCQ), Faculty of Physics, Universität Wien, Boltzmanngasse 5, A-1090 Wien, Austria
5Institut für Quantenoptik und Quanteninformation (IQOQI), Österreichische Akademie der Wissenschaften, Boltzmanngasse 3, A-1090 Wien, Austria
6Instytut Fizyki Teoretycznej i Astrofizyki, Uniwersytet Gdański, PL-80-952 Gdańsk, Poland
7Institut für Experimentalphysik, Universität Wien, Boltzmanngasse 5, A-1090 Wien, Austria

Received 1 June 2008; published 11 May 2012

Multiphoton interference reveals strictly nonclassical phenomena. Its applications range from fundamental tests of quantum mechanics to photonic quantum information processing, where a significant fraction of key experiments achieved so far comes from multiphoton state manipulation. The progress, both theoretical and experimental, of this rapidly advancing research is reviewed. The emphasis is given to the creation of photonic entanglement of various forms, tests of the completeness of quantum mechanics (in particular, violations of local realism), quantum information protocols for quantum communication (e.g., quantum teleportation, entanglement purification, and quantum repeater), and quantum computation with linear optics. The scope of the review is limited to “few-photon” phenomena involving measurements of discrete observables.

© 2012 American Physical Society

 

RMP Jian-Wei Pan, Zeng-Bing Chen, Chao-Yang Lu