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Quantum Foundations

Noiseless conditional teleportation of a single photon

arXiv

Authors: Maria Fuwa, Shunsuke Toba, Shuntaro Takeda, Petr Marek, Ladislav Mišta, Radim Filip, Peter van Loock, Jun-ichi Yoshikawa, Akira Furusawa

Year

2014

Paper ID

47884

Status

Preprint

Abstract Read

~2 min

Abstract Words

106

Citations

N/A

Abstract

We experimentally demonstrate the noiseless teleportation of a single photon by conditioning on quadrature Bell measurement results near the origin in phase space and thereby circumventing the photon loss that otherwise occurs even in optimal gain-tuned continuous-variable quantum teleportation. In general, thanks to this loss suppression, the noiseless conditional teleportation can preserve the negativity of the Wigner function for an arbitrary pure input state and an arbitrary pure entangled resource state. In our experiment, the positive value of the Wigner function at the origin for the unconditional output state, W(0,0) = 0.015 pm 0.001, becomes clearly negative after conditioning, W(0,0) = -0.025 pm 0.005, illustrating the advantage of noiseless conditional teleportation.

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We experimentally demonstrate the noiseless teleportation of a single photon by conditioning on quadrature Bell measurement results near the origin in phase space and thereby...

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References & Citation Signals

[1] DOI https://doi.org/arXiv:1408.6406 [2] arXiv https://arxiv.org/abs/1408.6406 [3] Publisher https://arxiv.org/abs/1408.6406

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