Knitting distributed cluster state ladders with spin chains

Details Knitting distributed cluster state ladders with spin chains Knitting distributed cluster state ladders with spin chains

2011-04-22

arxiv.org/abs/1104.4434v2

Phys. Rev. A 84, 032308 (2011)

Physics

Quantum Physics

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

Scientific paper

10.1103/PhysRevA.84.032308

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.

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