Remotely Establishing Polarization Entanglement Over Noisy Polarization Channels

The faithful distribution of entanglement over noisy channels is a vital prerequisite for many quantum technological applications. Quantum information can be encoded in different degrees freedom (DOF) photons, where each encoding comes with its own advantages and disadvantages respect to noise resilience practicality manipulation. In this work, we experimentally implement deterministic purification protocol that allows us faithfully distribute one DOF channel then remotely transfer it another particular, robust energy-time polarization at the communicating parties. obtained state independent during reaches fidelities Bell up 97.6%. Our scheme enables efficient presence arbitrary noise, which relevant future large-scale networks.