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Annotated Bibliography_Example - Quantum Computers and...

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Quantum Computers and Quantum Teleportation Eunice Johnston A quantum computer is a computational device based on quantum mechanics that would allow the storage and manipulation of extremely large amounts of data at a subatomic level. Quantum teleportation is a process that uses quantum computers to transmit the characteristics of a something to a different place; in this process, the original is destroyed and an exact duplicate is recreated elsewhere. Quantum computing and quantum teleportation are in the experimental stage. In 2003, Swiss scientist Nicolas Gisin reported success in teleporting a photon over four millimeters. In 2009, physicists at the University of Maryland reported teleporting a qubit between two widely separated, charged atoms. Teleportation of anything larger than a photon is more difficult and the transportation of objects and people is highly unlikely any time in the foreseeable future. Quantum computers, however, would theoretically have the ability to transmit large amounts of data securely and without the use of a network (either with wires or wireless). Barry, P. (2009, Jan. 22). Quantum Information Teleported Between Distant Atoms. ScienceNews . Retrieved from The January 23 [2009] issue of Science included an article that reported on the first successful transfer of a qubit (“an undecided bit of quantum information”) between two widely separated, charged atoms. Previous experiments had teleported qubits between photons of light. This experiment is important because it represents another step toward the development of quantum computers that would be both extremely fast and extremely secure; however, the article also includes a comment from Eugene Polzik, a noted physicist, that the efficiency of the procedure is too low to be immediately useful. Science News is the “magazine of the Society for Science and the Public,” and Patrick Barry appears to be a staff writer for this publication. The articles report on recent research that have appeared in the more technical, profession types of periodicals such as Science but attempt to present the key findings in a manner that will be more accessible to non-specialists (which is immediately apparent because the article begins with a joke). However, the technical information seems to be very accurate. Brassard, G., Bruanstein, S. L. & Cleve, R.
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This note was uploaded on 04/27/2011 for the course ENGL 321 taught by Professor Gayle during the Spring '11 term at Founders College.

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Annotated Bibliography_Example - Quantum Computers and...

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