dorsal/arxiv
View SchemaDemonstration of quantum telecloning of optical coherent states
| Authors | Satoshi Koike, Hiroki Takahashi, Hidehiro Yonezawa, Nobuyuki Takei, Samuel L. Braunstein, Takao Aoki, Akira Furusawa |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0507240 |
| URL | https://arxiv.org/abs/quant-ph/0507240 |
| DOI | 10.1103/PhysRevLett.96.060504 |
| Journal | Phys. Rev. Lett. 96, 060504 (2006) |
Abstract
Quantum cryptography promises in-principle secure communication between two parties via a quantum channel, with the ability to discover eavesdropping when it occurs. In 1999, a telecloning protocol was invented [M. Murao {\it et al}., Phys. Rev. A {\bf 59}, 156 (1999)] that provides a way for an eavesdropper to remotely monitor a quantum cryptographic channel such that even if eavesdropping is discovered, the identity and location of the eavesdropper is guaranteed uncompromised. Here we demonstrate unconditional telecloning experimentally for the first time. We symmetrically teleclone coherent states of light, achieving a fidelity for each clone of $F = 0.58 \pm 0.01$.
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"abstract": "Quantum cryptography promises in-principle secure communication between two\nparties via a quantum channel, with the ability to discover eavesdropping when\nit occurs. In 1999, a telecloning protocol was invented [M. Murao {\\it et al}.,\nPhys. Rev. A {\\bf 59}, 156 (1999)] that provides a way for an eavesdropper to\nremotely monitor a quantum cryptographic channel such that even if\neavesdropping is discovered, the identity and location of the eavesdropper is\nguaranteed uncompromised. Here we demonstrate unconditional telecloning\nexperimentally for the first time. We symmetrically teleclone coherent states\nof light, achieving a fidelity for each clone of $F = 0.58 \\pm 0.01$.",
"arxiv_id": "quant-ph/0507240",
"authors": [
"Satoshi Koike",
"Hiroki Takahashi",
"Hidehiro Yonezawa",
"Nobuyuki Takei",
"Samuel L. Braunstein",
"Takao Aoki",
"Akira Furusawa"
],
"categories": [
"quant-ph"
],
"doi": "10.1103/PhysRevLett.96.060504",
"journal_ref": "Phys. Rev. Lett. 96, 060504 (2006)",
"title": "Demonstration of quantum telecloning of optical coherent states",
"url": "https://arxiv.org/abs/quant-ph/0507240"
},
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