Bulletin of the American Physical Society
2007 APS March Meeting
Volume 52, Number 1
Monday–Friday, March 5–9, 2007; Denver, Colorado
Session U2: Quantum Cryptography and Quantum Communication I
8:00 AM–11:00 AM,
Thursday, March 8, 2007
Colorado Convention Center Room: Four Seasons 4
Sponsoring Units: GQI DCMP
Chair: Paul Kwiat, University of Illinois at Urbana-Champaign
Abstract ID: BAPS.2007.MAR.U2.2
Abstract: U2.00002 : Beller Lectureship Recipient Talk: Applications of Quantum Teleportation*
8:36 AM–9:12 AM
Preview Abstract Abstract
(Physikalisches Institut der Universitaet Heidelberg, Germany and Hefei National Laboratory for Physical Sciences at Microscale, China)
Quantum teleportation, a way to transfer the state of a quantum system from one location to another, is central to quantum communication and plays an important role in a number of quantum computation protocols. Previous experimental demonstrations have been implemented with single photonic or ionic qubits. Very recently long-distance teleportation and open-destination teleportation have also been realized. Until now, previous experiments have only been able to teleport single qubits. However, since teleportation of single qubits is insufficient for a large-scale realization of quantum communication and computation, teleportation of a composite system containing two or more qubits has been seen as a long-standing goal in quantum information science. In my talk, I shall present the first experimental realization of quantum teleportation of a two-qubit composite system. In the experiment, we develop and exploit a six-photon interferometer to teleport an arbitrary polarization state of two photons. Not only does our six-photon interferometer provide an important step towards teleportation of a complex system, it will also enable future experimental investigations on a number of fundamental quantum communication and computation protocols such as multi-stage realization of quantum-relay, fault-tolerant quantum computation, universal quantum error-correction and one-way quantum computation.
*This work was supported by the Marie Curie Excellent Grant of the EU and the Alexander von Humboldt Foundation. This work was also supported by the National Natural Science Foundation of China and the Chinese Academy of Sciences.
To cite this abstract, use the following reference: http://meetings.aps.org/link/BAPS.2007.MAR.U2.2
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