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Phys Rev Lett. 2009 Mar 13;102(10):100501. Epub 2009 Mar 9.

Efficient quantum circuits for one-way quantum computing.

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Corporate R & D center, Toshiba Corporation, Saiwai-ku, Kawasaki 212-8582, Japan.


While Ising-type interactions are ideal for implementing controlled phase flip gates in one-way quantum computing, natural interactions between solid-state qubits are most often described by either the XY or the Heisenberg models. We show an efficient way of generating cluster states directly using either the imaginary SWAP (iSWAP) gate for the XY model, or the sqrt[SWAP] gate for the Heisenberg model. Our approach thus makes one-way quantum computing more feasible for solid-state devices.

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