Experimental Demonstration of Four-Photon Entanglement and High-Fidelity Teleportation
| Autor: | Matthew Daniell, Gregor Weihs, Jian-Wei Pan, Anton Zeilinger, Sara Gasparoni |
|---|---|
| Rok vydání: | 2001 |
| Předmět: |
Physics
TheoryofComputation_GENERAL General Physics and Astronomy Data_CODINGANDINFORMATIONTHEORY Quantum Physics Quantum entanglement Quantum channel Quantum energy teleportation Squashed entanglement Multipartite entanglement Photon entanglement Superdense coding Quantum mechanics Quantum teleportation |
| Zdroj: | Physical Review Letters. 86:4435-4438 |
| ISSN: | 1079-7114 0031-9007 |
| DOI: | 10.1103/physrevlett.86.4435 |
| Popis: | We experimentally demonstrate observation of highly pure four-photon GHZ entanglement produced by parametric down-conversion and a projective measurement. At the same time this also demonstrates teleportation of entanglement with very high purity. Not only does the achieved high visibility enable various novel tests of quantum nonlocality, it also opens the possibility to experimentally investigate various quantum computation and communication schemes with linear optics. Our technique can, in principle, be used to produce entanglement of arbitrarily high order or, equivalently, teleportation and entanglement swapping over multiple stages. |
| Databáze: | OpenAIRE |
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