Robust state transfer and rotation through a spin chain via dark passage

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Quantum state transfer through a spin chain via adiabatic dark passage is proposed. This technique is robust against control field fluctuations and unwanted environmental coupling of intermediate spins. Our method can be applied to spin chains with more than three spins. We also propose single qubit rotation using this technique.
4 pages, changed to simpler notations, typo corrected in version 2 typo corrected and minor changes in the discussion part made in version 3

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Quantum Physics

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http://salesiana.dossiersoluciones.com/handle/123456789/166277

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/quant-ph/0702019
 http://arxiv.org/abs/quant-ph/0702019

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arXiv