Quantum Internet
The quirks of quantum mechanics may lead to better computer networks
The possibility of linking quantum computers into networks that might outperform their classical cousins creeps closer to reality.
References:
Bouwmeester, D. . . . and A. Zeilinger. 1999. Observation of three-photon Greenberger-Horney-Zeilinger entanglement. Physical Review Letters 82(Feb. 15):1345.
Caves, C.M. 1998. A tale of two cities. Science 282(Oct. 23):637.
Furusawa, A. . . . H.J. Kimble, et al. 1998. Unconditional quantum teleportation. Science 282(Oct. 23):706.
Nielsen, M.A., E. Knill, and R. Laflamme. 1998. Complete quantum teleportation using nuclear magnetic resonance. Nature 395(Nov. 5):52.
Raz, R. Preprint. Exponential separation of quantum and classical communication complexity.
Tittel, W., et al. 1998. Experimental demonstration of quantum correlations over more than 10 km. Physical Review A 57(May):3229.
Watrous, J. 1999. PSPACE has 2-round quantum interactive proof systems. Second Workshop on Algorithms in Quantum Information Processing. January. DePaul University, Chicago.
Further Readings:
Peterson, I. 1998. Instant transport. Science News 153(Jan. 17):41.
______. 1993. Inspecting teleported quantum information. Science News 143(April 10):229.
Vergano, D. 1997. Brewing a quantum computer in a coffee chop. Science News 151(Jan. 18):37.
Weiss, P. 1998. Sight unseen: Quantum errors found, fixed. Science News 154(Sept. 12):165.
University of Geneva researchers describe a way to teleport so-called energy-entangled photons in a report at http://xxx.lanl.gov/abs/quant-ph/9809034 that is scheduled to appear in a future issue of Physical Review Letters.
Sources:
Charles H. Bennett
IBM Research Division
Thomas J. Watson Research Center
Yorktown Heights, NY 10598
Richard Cleve
University of Calgary
Department of Computer Science
Math Sciences Building 247
2500 University Drive, N.W.
Calgary, Alberta T2N 1N4
Canada
Christopher A. Fuchs
California Institute of Technology
Norman Bridge Laboratory of Physics
Pasadena, CA 91125
H. Jeff Kimble
California Institute of Technology
Norman Bridge Laboratory of Physics
Pasadena, CA 91125
Raymond Laflamme
Los Alamos National Laboratory
Theoretical Astrophysics, T-6
MSB 288
Los Alamos, NM 87545
Ran Raz
Weizmann Institute
Department of Applied Mathematics
Rehovot 76100
Israel
Wolfgang Tittel
University of Geneva
Group of Applied Physics
20 Rue de l'Ecole de Médicine
CH-1211 Geneva 4
Switzerland
John Watrous
University of Montreal
Laboratory for Theoretical and Quantum Computing
Department of IRO
C.P. 6128 Succursale Centre-Ville
Montreal, Quebec H3C 2J7
Canada
Anton Zeilinger
University of Vienna
Institut fuer Experimentalphysik
Boltzmanngasse 5
1090 Wien
Austria
From Science News, Vol. 155, No. 14, April 3, 1999, p. 220. Copyright © 1999, Science Service.
