Teleporting an unknown quantum state via dual classical and Einstein-Podolsky-Rosen channels
Charles H. BennettDepartment of Physics, Williams College, Williamstown, Massachusetts 01267Gilles BrassardLaboratoire d’Informatique de l’École Normale Supérieure, 45 rue d’Ulm, 75230 Paris CEDEX 05, FranceClaude CrépeauLaboratoire d’Informatique de l’École Normale Supérieure, 45 rue d’Ulm, 75230 Paris CEDEX 05, FranceRichard JozsaIBM Research Division, Thomas J. Watson Research Center, Yorktown Heights, New York 10598Asher PeresDepartment of Physics, Williams College, Williamstown, Massachusetts 01267William K. WoottersDepartment of Physics, Technion–Israel Institute of Technology, 32000 Haifa, Israel
1993en
ABI
Annotatsiya
An unknown quantum state \ensuremath{\Vert}\ensuremath{\varphi}〉 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 \ensuremath{\Vert}\ensuremath{\varphi}〉 which Alice destroyed.
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