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High Fidelity State Transfer Over an Unmodulated Linear XY Spin Chain

We provide a class of initial encodings that can be sent with a high fidelity over an unmodulated, linear, XY spin chain. As an example, an average fidelity of ninety-six percent can be obtained using an eleven-spin encoding to transmit a state over a chain containing ten-thousand spins. An analysis of the magnetic field dependence is given, and conditions for field optimization are provided.

preprint2010arXivOpen access
C. Allen BishopYong-Cheng OuZhao-Ming WangMark S. Byrd
quant-ph
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Open access4 authors1 topic
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C. Allen BishopYong-Cheng OuZhao-Ming WangMark S. Byrd

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