0000000000516299

AUTHOR

Shunsuke Toba

showing 2 related works from this author

Vacuum Suppression in Gain-tuned Continuous-Variable Quantum Teleportation of a Single Photon by Conditioning on Sender

2014

We experimentally demonstrate bolstering the strength of gain-tuned continuous variable quantum teleportation of a single photon by conditioning on the sender's measurement results to eliminate excess vacuum contamination in the output.

PhysicsPhotonSuperdense codingQuantum mechanicsConditioningCommunication sourceQuantum key distributionQuantum energy teleportationPhoton countingQuantum teleportationFrontiers in Optics 2014
researchProduct

Noiseless Conditional Teleportation of a Single Photon

2014

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, …

PhysicsQuantum PhysicsPhotonQuantum mechanicsPhase spaceFOS: Physical sciencesGeneral Physics and AstronomyWigner distribution functionNegativity effectQuantum energy teleportationQuantum Physics (quant-ph)TeleportationQuantum teleportationPhysical Review Letters
researchProduct