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Quantum networks use quantum mechanics properties of entanglement and teleportation to transfer data from one node to another. Hence, it is necessary to have an efficient mechanism to distribute entanglement among quantum network nodes.…

Quantum Physics · Physics 2020-12-29 Dibakar Das , Shiva Kumar Malapaka , Jyotsna Bapat , Debabrata Das

The interconnection network is a key element in High-Performance Computing (HPC) and Datacenter (DC) systems whose performance depends on several design parameters, such as the topology, the switch architecture, and the routing algorithm.…

Networking and Internet Architecture · Computer Science 2025-02-04 Jose Rocher-Gonzalez , Jesus Escudero-Sahuquillo , Pedro J. Garcia , Francisco J. Quiles , Gaspar Mora

This paper presents a comparative analysis of three routing strategies in opportunistic quantum networks. Quantum communication networks face unique challenges, such as the fragility of qubits and the need to create and maintain pairs of…

Networking and Internet Architecture · Computer Science 2023-11-06 Diego Abreu , Alan Veloso , Antonio Abelém

Quantum networks rely on the efficient distribution of entanglement to enable long-distance quantum communication and information processing. A key challenge in these networks is the design of routing protocols capable of maintaining high…

Networking and Internet Architecture · Computer Science 2026-05-25 Javier Vecino Peñas , Ana Fernández-Vilas , Rebeca P. Díaz-Redondo , Sergio Gándara Gándara , Manuel Fernández-Veiga

As quantum key distribution becomes increasingly practical, questions of how to effectively employ it in large-scale networks and over large distances becomes increasingly important. To that end, in this work, we model the performance of…

Quantum Physics · Physics 2020-08-03 Omar Amer , Walter O. Krawec , Bing Wang

Probabilistic message-passing algorithms are developed for routing transmissions in multi-wavelength optical communication networks, under node and edge-disjoint routing constraints and for various objective functions. Global routing…

Physics and Society · Physics 2022-04-25 Yi-Zhi Xu , Ho Fai Po , Chi Ho Yeung , David Saad

There will be a fast-paced shift from conventional network systems to novel quantum networks that are supported by the quantum entanglement and teleportation, key technologies of the quantum era, to enable secured data transmissions in the…

Networking and Internet Architecture · Computer Science 2022-07-26 Tu N. Nguyen , Dung H. P. Nguyen , Dang H. Pham , Bing-Hong Liu , Hoa N. Nguyen

We propose an approach to distribute high-fidelity long-range entanglement in a quantum network assisted by the entanglement supplied by auxiliary short-range paths between the network nodes. Entanglement assistance in the form of shared…

Quantum Physics · Physics 2021-01-20 Siddhartha Santra , Vladimir S. Malinovsky

Realization of a globe-spanning quantum network is a current worldwide goal, where near and long term implementations will benefit from connectivity between platforms optimized for specific tasks. Towards this goal, a quantum network…

Quantum Physics · Physics 2021-06-11 Mohsen Falamarzi Askarani , Kaushik Chakraborty , Gustavo Castro do Amaral

We consider the problem of multi-path entanglement distribution to a pair of nodes in a quantum network consisting of devices with non-deterministic entanglement swapping capabilities. Multi-path entanglement distribution enables a network…

Quantum Physics · Physics 2024-05-21 Gayane Vardoyan , Emily van Milligen , Saikat Guha , Stephanie Wehner , Don Towsley

Quantum computers face inherent scaling challenges, a fact that necessitates investigation of distributed quantum computing systems, whereby scaling is achieved through interconnection of smaller quantum processing units. However,…

Quantum Physics · Physics 2026-01-21 Felix Burt , Kuan-Cheng Chen , Kin K. Leung

We consider multi-path routing of entanglement in quantum networks, where a pre-prepared multipartite entangled 2D cluster state serves as a resource to perform different tasks on demand. We show how to achieve parallel connections between…

Quantum Physics · Physics 2026-03-12 Julia Freund , Alexander Pirker , Wolfgang Dür

This paper addresses resource allocation for entanglement distribution in multi-channel quantum networks. A system model is proposed that integrates a multi-channel quantum network architecture with heterogeneous link characteristics and…

Quantum Physics · Physics 2026-05-07 Gongyu Ni , Lester Ho

Entanglement distribution is a prerequisite for several important quantum information processing and computing tasks, such as quantum teleportation, quantum key distribution, and distributed quantum computing. In this work, we focus on…

Quantum Physics · Physics 2018-03-02 Siddhartha Das , Sumeet Khatri , Jonathan P. Dowling

In this paper, we consider quantum key distribution (QKD) in a quantum network with both quantum repeaters and a small number of trusted nodes. In contrast to current QKD networks with only trusted nodes and the true Quantum Internet with…

Quantum Physics · Physics 2022-12-07 Omar Amer , Walter O. Krawec , Victoria U. Manfredi , Bing Wang

The entanglement distribution networks with various topologies are mainly implemented by active wavelength multiplexing routing strategies. However, designing an entanglement routing scheme, which achieves the maximized network connections…

Quantum Physics · Physics 2024-02-01 Hui Han , Bo Liu , Bangying Tang , Siyu Xiong , Jinquan Huang , Wanrong Yu , Shuhui Chen

To implement arbitrary quantum circuits in architectures with restricted interactions, one may effectively simulate all-to-all connectivity by routing quantum information. We consider the entanglement dynamics and routing between two…

The quantum internet holds transformative potential for global communication by harnessing the principles of quantum information processing. Despite significant advancements in quantum communication technologies, the efficient distribution…

Quantum Physics · Physics 2025-03-06 Lamarana Jallow , Majid Iqbal Khan

Quantum communication networks are emerging as a promising technology that could constitute a key building block in future communication networks in the 6G era and beyond. These networks have an inherent feature of parallelism that allows…

Networking and Internet Architecture · Computer Science 2021-06-01 Mahdi Chehimi , Walid Saad

Distributing quantum entanglements over long distances is essential for the realization of a global scale quantum Internet. Most of the prior work and proposals assume an on-demand distribution of entanglements which may result in…

Quantum Physics · Physics 2022-12-06 Shahrooz Pouryousef , Nitish K. Panigrahy , Don Towsley