Quantum Information Processing, Vol. 3, Nos. 1–5, October 2004 (© 2004)
Photonic Technologies for Quantum Information
Sae Woo Nam,
and Franco N. C. Wong
Received February 26, 2004; accepted May 6, 2004
The last several years have seen tremendous progress toward practical optical
quantum information processing, including the development of single- and entan-
gled-photon sources and high-efﬁciency photon counting detectors, covering a range
of wavelengths. We review some of the recent progress in the development of these
KEY WORDS: Quantum dot; entanglement; down-conversion; single-photon
PACS: 03.67.−a, 42.50.Dv, 42.65.Lm, 78.67.Hc, 85.60.Gz.
It is now generally realized that fundamentally quantum-mechanical
phenomena can enable signiﬁcant, and in some cases, tremendous, improve-
ment for a variety of tasks important to emergent technologies. Build-
ing on decades of successes in the experimental demonstration of such
fundamental phenomena, it is not surprising that photonics is playing a
Departments of Electrical and Computer Engineering, and Physics and Astronomy, North-
western University, Evanston, Illinois 60208-3118, USA. E-mail: firstname.lastname@example.org
Department of Physics, University of Illinois, Urbana-Champaign, Illinois 61801-3080,
Optical Technology Div., NIST, Gaithersburg, Maryland 20899-8441, USA.
Quantum Electrical Metrology Division, NIST, Boulder, Colarado 80305-3328, USA.
Department of Electrical Engineering, Stanford University, Stanford, California 94305,
Research Laboratory of Electronics, MIT, Cambridge, Massachusetts 02139, USA.
To whom correspondence should be addressed. E-mail: email@example.com
1570-0755/04/1000-0215/0 © 2004 Springer Science+Business Media, Inc.