Secure quantum remote state preparation of squeezed microwave states
arXiv:1902.00453 · doi:10.1038/s41467-019-10727-7
Abstract
Quantum communication protocols based on nonclassical correlations can be more efficient than known classical methods and offer intrinsic security over direct state transfer. In particular, remote state preparation aims at the creation of a desired and known quantum state at a remote location using classical communication and quantum entanglement. We present an experimental realization of deterministic continuous-variable remote state preparation in the microwave regime over a distance of 35 cm. By employing propagating two-mode squeezed microwave states and feedforward, we achieve the remote preparation of squeezed states with up to 1.6 dB of squeezing below the vacuum level. We quantify security in our implementation using the concept of the one-time pad. Our results represent a significant step towards microwave quantum networks between superconducting circuits.
Main text: 6 pages, 4 figures; Supplementary Information: 8 pages, 5 figures
References in corpus (8)
- Experimental quantum teleportation
- Detecting arbitrary quantum errors via stabilizer measurements on a sublattice of the surface code
- Sideband Cooling Beyond the Quantum Limit with Squeezed Light
- Remote state preparation: arbitrary remote control of photon polarization
- Generating Entangled Microwave Radiation Over Two Transmission Lines
- Operational Significance of Discord Consumption: Theory and Experiment
- Path Entanglement of Continuous-Variable Quantum Microwaves
- Photon Statistics of Propagating Thermal Microwaves
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