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Robust control of long distance entanglement in disordered spin chains

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arxiv 1407.1327 v3 pith:OATDUG3Z submitted 2014-07-04 quant-ph

Robust control of long distance entanglement in disordered spin chains

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keywords controldisorderedentanglementapproachchainslong-distancespinalways
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We derive temporally shaped control pulses for the creation of long-distance entanglement in disordered spin chains. Our approach is based on a time-dependent target functional and a time-local control strategy that permits to ensure that the description of the chain in terms of matrix product states is always valid. With this approach, we demonstrate that long-distance entanglement can be created even for substantially disordered interaction landscapes.

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