Continuous Variable Quantum Teleportation Network

Quantum network scales the advantages of quantum communication protocols to more than two detached users, which offers great potential to realize the quantum internet. Here, a fully connected continuous-variable (CV) quantum teleportation network architecture is presented, in which a squeezed state of light distributes each pair of entangled sideband modes to each communication link that bridges any pair of users. The quantum teleportation scheme is similar to standard two-party ones for each communication link, without sacrificing communication capability and reliability. The demonstration based on CV-entangled sideband modes opens an innovative possibility to implement many tasks of deterministic quantum information processing.