Quantum Cooperative Multicast in a Quantum Hybrid Topology Network

Abstract

Quantum multicast is a significant transmission mode in a multiparty communication scenario. Multisource collaboration can further enhance the efficient multicast. However, it remains a challenge to realize quantum multicast with a cooperative way in a complex topology network. In this article, we propose a scheme of quantum cooperative multicast in a hybrid topology network. It provides information aggregation and simultaneous multipoint transmission services. First, collaborative information aggregation allows central network data to be integrated into the aggregation node. By exploiting the quantum multicast mode, the aggregation node can simultaneously deliver integrated quantum states to multiple targets. Second, our scheme is feasible for dynamic network expansion. It is capable of extending the network architecture iteratively, while the peer network requests can be handled in parallel. Finally, the new scheme shows great application potential in the distributed quantum network. It is a promising candidate for the implementation of quantum data disaster backup in future.

Entanglement Parallelization via Quantum Fourier Transform

“…As in the case of the configuration in Figure 5, where the fidelities of Equations ( 52), (53), and (54) indicate that the traditional fidelity used in the literature [54] gives superior performance to the real one, the fidelities obtained here through Equations ( 67), (68), and ( 69), testify similar behavior, even with a different quantum processor.…”

“…In the context of the Quantum Internet, [14][15][16][17][18][19][20][21][22][23][24] this possibility will constitute an invaluable tool to implement ring-type urban or satellite topologies, which will be particularly useful when carrying out key relays for QKD. [33][34][35][36][37][38][39][40][41] Other applications of entanglement parallelization are a) multi-orbit architecture [52] for early intrusion detection and space quantum ring surveillance, b) quantum cooperative multicast in a quantum hybrid topology network [53] for communications in large urban areas, and c) as a replacement for GHZ states in multicast QKD, because it eliminates inter-channeling, as well as coupling noise among channels.…”