Quantum networks

Shahad A. Hussein, Alharith A. Abdullah

Quantum networks are the latest networks that have the tremendous ability to perform functions that traditional networks cannot perform, like clock synchronization and secure remote computation, and others, as these networks are subject to quantum mechanics, which is considered the power of this network, such as quantum entanglement and the theory of no-cloning and others, where many studies have been presented about the quantum networks in various aspects Such as studies on communication in quantum networks, in addition to studies that include part of the principles of the work of these networks. So this research aims to present a comprehensive study on the basics of quantum networks in order to give an overview of what these networks lie. Thus, this research was able to make a general comparison between classical networks and quantum networks, in addition to presenting the principles of work of quantum networks in a clear and sequential manner.

Günter Mahler A, Volker A. Weberruß

Jincheng Zhang

Quantum networks offer unprecedented capabilities for secure communication and distributed quantum computation. Traditional networks face limitations in scalability and robustness. This paper introduces the Self-Organizing Quantum Network (SONQN), a novel quantum network architecture based on the intrinsic properties of quantum entanglement. SONQN utilizes entangled qubits to establish a self-organizing topology, enabling efficient data transmission and computation. We present a theoretical framework demonstrating the potential for SONQN to outperform existing quantum communication protocols. The core mechanism centers on leveraging entanglement for dynamic network reconfiguration, enhancing network resilience and scalability. This work explores the fundamental principles underlying SONQN and its implications for future quantum network development.

Günter Mahler A, Volker A. Weberruß

Peter P. Rohde

Zefan Tang, Peng Zhang, Walter O. Krawec +1 more

Quantum networks are considered to be the future of secure communication in the coming quantum era. However, significant efforts are lacking on developing practical quantum networks for power grids. This paper establishes a quantum network-based power grid (QNetGrid) framework and develops a real-time, reliable, flexible, programmable, and cost-effective QNetGrid software testbed containing repeater-based quantum communication, quantum routing, real software-defined networking (SDN) switches, and real-time networked microgrids (NMs) operations. It makes the following contributions: 1) a repeater and routing based quantum network simulator (QNSim) is developed, 2) repeaters with and without quantum memories are respectively simulated in QNSim, 3) different routing scenarios in QNetGrid are investigated, 4) a real-time QNetGrid software testbed is built in RTDS incorporating QNSim and real SDN switches, and 5) various test cases are designed, and experimental results produced with the QNetGrid testbed provide valuable insights for building quantum networks in power grids.