Flexible quantum data bus for quantum networks

Abstract

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 multiple, freely chosen groups of parties by performing appropriate local measurements among diagonal paths, which preserves the entanglement structure of the remaining state. We demonstrate how to route multiple Bell-states along parallel lines via crossings, turns and fade-in/-outs, analogously to a data bus. The results apply to networks at any scale.

Note that we have corrected Figure 2 (data bus) and 6 (parallel transport), as we found a drawing error. In this sense, the version differs from the Journal version

References in corpus (33)

• The Quantum Internet
• Measurement-based quantum computation with cluster states
• Measurement-based quantum computation
• Multi-party entanglement in graph states
• Quantum repeaters: From quantum networks to the quantum internet
• Quantum Internet: Networking Challenges in Distributed Quantum Computing
• Graph States for Quantum Secret Sharing
• End-to-end capacities of a quantum communication network
• When Entanglement meets Classical Communications: Quantum Teleportation for the Quantum Internet (Invited Paper)
• Path Selection for Quantum Repeater Networks
• Optimal and Secure Measurement Protocols for Quantum Sensor Networks
• Quantum network communication -- the butterfly and beyond
• A quantum network stack and protocols for reliable entanglement-based networks
• Determinism in the one-way model
• Generalized Flow and Determinism in Measurement-based Quantum Computation
• Modular architectures for quantum networks
• Quantum network routing and local complementation
• Decentralized Base-Graph Routing for the Quantum Internet
• Distributing Graph States Over Arbitrary Quantum Networks
• Tools for quantum network design
• Robust quantum network architectures and topologies for entanglement distribution
• Entanglement-Gradient Routing for Quantum Networks
• Analysis of Multipartite Entanglement Distribution using a Central Quantum-Network Node
• Two dimensional quantum repeaters
• Quantum repeaters in space
• Large-scale quantum networks based on graphs
• Optimal distributed sensing in noisy environments
• Transforming graph states using single-qubit operations
• Multipartite state generation in quantum networks with optimal scaling
• Optimized Quantum Networks
• Growth of graph states in quantum networks
• Influence of noise in entanglement-based quantum networks
• Extracting GHZ states from linear cluster states

Cited by in corpus (7)

• Entanglement-Based Artificial Topology: Neighboring Remote Network Nodes
• Imperfect quantum networks with tailored resource states
• Graph state extraction from two-dimensional cluster states
• A resource- and computationally-efficient protocol for multipartite entanglement distribution in Bell-pair networks
• Task Concurrency and Compatibility in Measurement-Based Quantum Networks
• Long-ranged gates in quantum computation architectures with limited connectivity
• Temporal Framework for Causality-Preserving Scheduling of Measurements in Quantum Networks