Large Distance Continuous Variables Communication with Concatenated Swaps

Abstract

The radiation-pressure interaction between electromagnetic fields and mechanical resonators can be used to efficiently entangle two light fields which couple to a single mechanical mode. We analyze the performance of this process under realistic optomechanical conditions, and we determine the effectiveness of the resulting entanglement as a resource for quantum teleportation of continuous-variable light signals, over large distances, mediated by concatenated swap operations. We study the sensitiveness of the protocol to the quality factor of the mechanical systems, and its performance in non-ideal situations in which losses and reduced detection efficiencies are taken into account.

13 pages, 10 figures

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• Parametrically enhancing sensor sensitivity at an exceptional point
• Non-Gaussian entanglement swapping
• Enabling entanglement distillation via optomechanics
• A Local Area Quantum Teleportation Network Based on an Array of Electrically Activated Graphene Waveguide
• Pulsed quantum continuous-variable optoelectromechanical transducer
• Transfer of quantum states and stationary quantum correlations in a hybrid optomechanical network
• Continuous-Variable Quantum Teleportation Using Microwave Enabled Plasmonic Graphene Waveguide
• Multimode Gaussian steady state engineering in optomechanical systems with a squeezed reservoir