High-fidelity teleportation beyond the no-cloning limit and entanglement swapping for continuous variables

Nobuyuki Takei, Hidehiro Yonezawa, Takao Aoki, Akira Furusawa

Research output: Contribution to journalArticle

164 Citations (Scopus)

Abstract

We experimentally demonstrate continuous-variable quantum teleportation beyond the no-cloning limit. We teleport a coherent state and achieve the fidelity of 0.70±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.

Original languageEnglish
Article number220502
JournalPhysical Review Letters
Volume94
Issue number22
DOIs
Publication statusPublished - 2005 Jun 10
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

High-fidelity teleportation beyond the no-cloning limit and entanglement swapping for continuous variables. / Takei, Nobuyuki; Yonezawa, Hidehiro; Aoki, Takao; Furusawa, Akira.

In: Physical Review Letters, Vol. 94, No. 22, 220502, 10.06.2005.

Research output: Contribution to journalArticle

@article{01a8e302754442da8e691cdd68e83264,
title = "High-fidelity teleportation beyond the no-cloning limit and entanglement swapping for continuous variables",
abstract = "We experimentally demonstrate continuous-variable quantum teleportation beyond the no-cloning limit. We teleport a coherent state and achieve the fidelity of 0.70±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.",
author = "Nobuyuki Takei and Hidehiro Yonezawa and Takao Aoki and Akira Furusawa",
year = "2005",
month = "6",
day = "10",
doi = "10.1103/PhysRevLett.94.220502",
language = "English",
volume = "94",
journal = "Physical Review Letters",
issn = "0031-9007",
publisher = "American Physical Society",
number = "22",

}

TY - JOUR

T1 - High-fidelity teleportation beyond the no-cloning limit and entanglement swapping for continuous variables

AU - Takei, Nobuyuki

AU - Yonezawa, Hidehiro

AU - Aoki, Takao

AU - Furusawa, Akira

PY - 2005/6/10

Y1 - 2005/6/10

N2 - We experimentally demonstrate continuous-variable quantum teleportation beyond the no-cloning limit. We teleport a coherent state and achieve the fidelity of 0.70±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.

AB - We experimentally demonstrate continuous-variable quantum teleportation beyond the no-cloning limit. We teleport a coherent state and achieve the fidelity of 0.70±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.

UR - http://www.scopus.com/inward/record.url?scp=27744493301&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=27744493301&partnerID=8YFLogxK

U2 - 10.1103/PhysRevLett.94.220502

DO - 10.1103/PhysRevLett.94.220502

M3 - Article

VL - 94

JO - Physical Review Letters

JF - Physical Review Letters

SN - 0031-9007

IS - 22

M1 - 220502

ER -