Knitting distributed cluster state ladders with spin chains

Abstract

There has been much recent study on the application of spin chains to quantum state transfer and communication. Here we discuss the utilisation of spin chains (set up for perfect quantum state transfer) for the knitting of distributed cluster state structures, between spin qubits repeatedly injected and extracted at the ends of the chain. The cluster states emerge from the natural evolution of the system across different excitation number sectors. We discuss the decohering effects of errors in the injection and extraction process as well as the effects of fabrication and random errors.

To be published in PRA. v2 includes minor corrections as well as an added discussion on refocussing

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Cited by in corpus (7)

• Topologically protected localised states in spin chains
• Robust Quantum Entanglement Generation and Generation-plus-Storage Protocols with Spin Chains
• Parallel entangling gate operations and two-way quantum communication in spin chains
• Evolutionary computation for adaptive quantum device design
• Anderson localisation in spin chains for perfect state transfer
• Comparison of entangling protocols in ABC-type spin chains
• Fast and efficient long-distance quantum state transfer in long-range spin-$\frac{1}{2}$ models