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

Ohshima, Toshio and Ekert, Artur and Oi, Daniel K.L. and Kaslizowski, Dagomir and Kwek, L.C. (2007) Robust state stansfer and rotation through a spin chain via dark passage. arXiv.org. (Unpublished)

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    Abstract

    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.