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Perfect state transfer on a spin-chain without state initialization

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 نشر من قبل Carlo Di Franco
 تاريخ النشر 2008
  مجال البحث فيزياء
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We demonstrate that perfect state transfer can be achieved using an engineered spin chain and clean local end-chain operations, without requiring the initialization of the state of the medium nor fine tuning of control-pulses. This considerably relaxes the prerequisites for obtaining reliable transfer of quantum information across interacting-spin systems. Moreover, it allows us to shed light on the interplay among purity, entanglement and operations on a class of many-body systems potentially useful for quantum information processing tasks.



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