Long Distance Continuous Variable Entanglement Distribution Using Non-Gaussian States

Abstract

Here we present a protocol for concatenated entanglement swapping to distribute en tanglement over longer distances. We test our protocol against continuous variable states including both Gaussian and non-Gaussian states. We then present our re sults for teleportation fidelities over lossy quantum channels and inefficient detectors to emulate realistic parameters. Analyzing the performance of different states, we were able to conclude that the PAS state outperforms all the states for low-squeezing regimes.