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Experimental demonstration of quantum teleportation of a squeezed state

Yonezawa, Hidehiro, Braunstein, Samuel L. (orcid.org/0000-0003-4790-136X) and Furusawa, Akira (2007) Experimental demonstration of quantum teleportation of a squeezed state. Physical Review Letters. Art. No. 110503. ISSN 1079-7114

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We demonstrate an unconditional high-fidelity teleporter capable of preserving the broadband entanglement in an optical squeezed state. In particular, we teleport a squeezed state of light and observe -0.8 ± 0.2dB of squeezing in the teleported (output) state. We show that the squeezing criterion translates directly into a sufficient criterion for entanglement of the upper and lower sidebands of the optical field. Thus, this result demonstrates the first unconditional teleportation of broadband entanglement. Our teleporter achieves sufficiently high fidelity to allow the teleportation to be cascaded, enabling, in principle, the construction of deterministic non-Gaussian operations.

Item Type: Article
Copyright, Publisher and Additional Information: © 2007 The American Physical Society. This is an author produced version of a paper published in Physical Review Letters. Uploaded in accordance with the publisher's self-archiving policy.
Keywords: Continuous-variables,Light
Institution: The University of York
Academic Units: The University of York > Computer Science (York)
Depositing User: Ms Diana Hilmer
Date Deposited: 24 Oct 2007 13:54
Last Modified: 03 Apr 2016 00:01
Published Version: http://dx.doi.org/10.1103/PhysRevLett.99.110503
Status: Published
Refereed: Yes
URI: http://eprints.whiterose.ac.uk/id/eprint/3425

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