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Criteria for continuous-variable quantum teleportation

Braunstein, Samuel L. and Fuchs, Christopher A. and Kimble, H. J. (2000) Criteria for continuous-variable quantum teleportation. Journal of Modern Optics, 47 (2-3). pp. 267-278. ISSN 0950-0340. doi:10.1080/09500340008244041.

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We derive an experimentally testable criterion for the teleportation of quantum states of continuous variables. This criterion is especially relevant to the recent experiment of Furusawa et al. where an input—output fidelity of 0.58 ± 0.02 was achieved for optical coherent stages. Our derivation demonstrates that fidelities greater than 1/2 could not have been achieved through the use of a classical channel alone; quantum entanglement was a crucial ingredient in the experiment.

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Additional Information:© 2000 Taylor and Francis. Received 20 Apr 1999, Published online: 03 Jul 2009. We thank Jason McKeever for suggesting the nice example in Eq. (6) and thank J. R. Buck and C. M. Caves for useful discussions. This work was supported by the QUIC Institute funded by DARPA via the ARO, by the ONR, and by the NSF. SLB was funded in part by EPSRC grant GR/L91344. CAF acknowledges support of the Lee A. DuBridge Fellowship.
Funding AgencyGrant Number
Defense Advanced Research Projects Agency (DARPA)UNSPECIFIED
Army Research Office (ARO)UNSPECIFIED
Office of Naval Research (ONR)UNSPECIFIED
Engineering and Physical Sciences Research Council (EPSRC)GR/L91344
Lee A. DuBridge FellowshipUNSPECIFIED
Issue or Number:2-3
Record Number:CaltechAUTHORS:20201103-122655486
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Official Citation:Samuel L. Braunstein, Christopher A. Fuchs & H. J. Kimble (2000) Criteria for continuous-variable quantum teleportation, Journal of Modern Optics, 47:2-3, 267-278, DOI: 10.1080/09500340008244041
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:106398
Deposited By: Tony Diaz
Deposited On:04 Nov 2020 20:21
Last Modified:16 Nov 2021 18:53

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