APS » PROLA » Phys. Rev. Lett. » Volume 70 » Issue 13

Phys. Rev. Lett. 70, 1895 - 1899 (1993)

Teleporting an unknown quantum state via dual classical and Einstein-Podolsky-Rosen channels
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Charles H. Bennett, Gilles Brassard, Claude Crépeau, Richard Jozsa, Asher Peres, and William K. Wootters
IBM Research Division, Thomas J. Watson Research Center, Yorktown Heights, New York 10598
Département IRO, Université de Montréal, C.P. 6128, Succursale ‘‘A’’, Montréal, Québec, Canada H3C 3J7
Laboratoire d’Informatique de l’École Normale Supérieure, 45 rue d’Ulm, 75230 Paris CEDEX 05, France
Department of Physics, Technion–Israel Institute of Technology, 32000 Haifa, Israel
Department of Physics, Williams College, Williamstown, Massachusetts 01267

Received 2 December 1992

An unknown quantum state ‖φ〉 can be disassembled into, then later reconstructed from, purely classical information and purely nonclassical Einstein-Podolsky-Rosen (EPR) correlations. To do so the sender, ‘‘Alice,’’ and the receiver, ‘‘Bob,’’ must prearrange the sharing of an EPR-correlated pair of particles. Alice makes a joint measurement on her EPR particle and the unknown quantum system, and sends Bob the classical result of this measurement. Knowing this, Bob can convert the state of his EPR particle into an exact replica of the unknown state ‖φ〉 which Alice destroyed.


©1993 The American Physical Society

URL: http://link.aps.org/abstract/PRL/v70/p1895
DOI: 10.1103/PhysRevLett.70.1895
PACS: 03.65.Bz, 42.50.Dv, 89.70.+c

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