dorsal/arxiv
View SchemaBroadcasting of entanglement at a distance using linear optics and telecloning of entanglement
| Authors | Iulia Ghiu, Anders Karlsson |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0510143 |
| URL | https://arxiv.org/abs/quant-ph/0510143 |
| DOI | 10.1103/PhysRevA.72.032331 |
| Journal | Physical Review A 72, 032331 (2005) |
Abstract
We propose a scheme for broadcasting entanglement at a distance based on linear optics. We show that an initial polarization entangled state can be simultaneously split and transmitted to a pair of observers situated at different locations with the help of two conditional Bell-state analyzers based on two beam splitters characterized by the same reflectivity R. In particular for R=1/3 the final states coincide with the output states obtained by the broadcasting protocol proposed by Buzek et al. [Phys. Rev. A 55, 3327 (1997)]. Further we present a different protocol called telecloning of entanglement, which combines the many-to-many teleportation and nonlocal optimal asymmetric cloning of an arbitrary entangled state. This scheme allows the optimal transmission of the two nonlocal optimal clones of an entangled state to two pairs of spatially separated receivers.
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"abstract": "We propose a scheme for broadcasting entanglement at a distance based on\nlinear optics. We show that an initial polarization entangled state can be\nsimultaneously split and transmitted to a pair of observers situated at\ndifferent locations with the help of two conditional Bell-state analyzers based\non two beam splitters characterized by the same reflectivity R. In particular\nfor R=1/3 the final states coincide with the output states obtained by the\nbroadcasting protocol proposed by Buzek et al. [Phys. Rev. A 55, 3327 (1997)].\nFurther we present a different protocol called telecloning of entanglement,\nwhich combines the many-to-many teleportation and nonlocal optimal asymmetric\ncloning of an arbitrary entangled state. This scheme allows the optimal\ntransmission of the two nonlocal optimal clones of an entangled state to two\npairs of spatially separated receivers.",
"arxiv_id": "quant-ph/0510143",
"authors": [
"Iulia Ghiu",
"Anders Karlsson"
],
"categories": [
"quant-ph"
],
"doi": "10.1103/PhysRevA.72.032331",
"journal_ref": "Physical Review A 72, 032331 (2005)",
"title": "Broadcasting of entanglement at a distance using linear optics and telecloning of entanglement",
"url": "https://arxiv.org/abs/quant-ph/0510143"
},
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