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High-fidelity teleportation beyond the no-cloning limit and entanglement swapping for continuous variables
We experimentally demonstrate continuous-variable quantum teleportation beyond the no-cloning limit. We teleport a coherent state and achieve the fidelity of 0.70$\pm$0.02 that surpasses the no-cloning limit of 2/3. Surpassing the limit is necessary to transfer the nonclassicality of an input quantu...
| Autores principales: | , , , |
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| Lenguaje: | eng |
| Publicado: |
2005
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| Materias: | |
| Acceso en línea: | http://cds.cern.ch/record/815912 |
| _version_ | 1780905387102306304 |
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| author | Takei, N Yonezawa, H Aoki, T Furusawa, A |
| author_facet | Takei, N Yonezawa, H Aoki, T Furusawa, A |
| author_sort | Takei, N |
| collection | CERN |
| description | We experimentally demonstrate continuous-variable quantum teleportation beyond the no-cloning limit. We teleport a coherent state and achieve the fidelity of 0.70$\pm$0.02 that surpasses the no-cloning limit of 2/3. Surpassing the limit is necessary to transfer the nonclassicality of an input quantum state. By using our high-fidelity teleporter, we demonstrate entanglement swapping, namely teleportation of quantum entanglement, as an example of transfer of nonclassicality. |
| id | cern-815912 |
| institution | Organización Europea para la Investigación Nuclear |
| language | eng |
| publishDate | 2005 |
| record_format | invenio |
| spelling | cern-8159122019-09-30T06:29:59Zhttp://cds.cern.ch/record/815912engTakei, NYonezawa, HAoki, TFurusawa, AHigh-fidelity teleportation beyond the no-cloning limit and entanglement swapping for continuous variablesGeneral Theoretical PhysicsWe experimentally demonstrate continuous-variable quantum teleportation beyond the no-cloning limit. We teleport a coherent state and achieve the fidelity of 0.70$\pm$0.02 that surpasses the no-cloning limit of 2/3. Surpassing the limit is necessary to transfer the nonclassicality of an input quantum state. By using our high-fidelity teleporter, we demonstrate entanglement swapping, namely teleportation of quantum entanglement, as an example of transfer of nonclassicality.quant-ph/0501086oai:cds.cern.ch:8159122005-01-17 |
| spellingShingle | General Theoretical Physics Takei, N Yonezawa, H Aoki, T Furusawa, A High-fidelity teleportation beyond the no-cloning limit and entanglement swapping for continuous variables |
| title | High-fidelity teleportation beyond the no-cloning limit and entanglement swapping for continuous variables |
| title_full | High-fidelity teleportation beyond the no-cloning limit and entanglement swapping for continuous variables |
| title_fullStr | High-fidelity teleportation beyond the no-cloning limit and entanglement swapping for continuous variables |
| title_full_unstemmed | High-fidelity teleportation beyond the no-cloning limit and entanglement swapping for continuous variables |
| title_short | High-fidelity teleportation beyond the no-cloning limit and entanglement swapping for continuous variables |
| title_sort | high-fidelity teleportation beyond the no-cloning limit and entanglement swapping for continuous variables |
| topic | General Theoretical Physics |
| url | http://cds.cern.ch/record/815912 |
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