Perfect Quantum Routing in Regular Spin Networks

2010/07/19 by Peter J. Pemberton-Ross, Peter Pemberton‐Ross, Alastair Kay · 86 citations
Computer Science · Mathematics · Physics and Astronomy · #Computer network #Computer science #Mathematics #Physics #Quantum #Quantum Computing Algorithms and Architecture #Quantum Information and Cryptography #Quantum and electron transport phenomena #Quantum computer #Quantum entanglement #Quantum information #Quantum mechanics #Quantum network #Qubit #Topology (electrical circuits) #quant-ph

paper · pdf · doi:10.1103/physrevlett.106.020503

published in Physical Review Letters 106(2), 020503 (American Physical Society) · 4 pages, 3 figures

arxiv created 2010/07/19 · openalex publication_date 2011/01/13 · arxiv updated 2011/01/17 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05

Abstract

Motivated by the need for quantum computers to communicate between multiple, well separated qubits, we introduce the task of quantum routing for distributing quantum states, and generating entanglement, between these sites. We describe regular families of coupled quantum networks which perfectly route qubits between arbitrary pairs of nodes with a high transmission rate. The ability to route multiple states simultaneously and the regularity of the networks vastly improve the utility of this scheme in comparison to the task of state transfer, leading us to propose an implementation in optical lattices.

Citations

• Quantum communication through spin chain dynamics: an introductory overview
• Geometric effects and computation in spin networks
• Perfect transfer of arbitrary states in quantum spin networks
• Electron wavepacket propagation in a chain of coupled quantum dots

Cited by

• Quantum correlation with sandwiched relative entropies: Advantageous as order parameter in quantum phase transitions
• Generation of quantum states by the dynamics of spin chains: Analytical solution
• Multiphoton quantum communication in quantum networks