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Diffusion and transfer of entanglement in an array of inductively coupled flux qubits

  • Autori: Migliore, R.; Yuasa, K.; Guccione, M.; Nakazato, H.; Messina, A.
  • Anno di pubblicazione: 2007
  • Tipologia: Articolo in rivista (Articolo in rivista)
  • OA Link:


A theoretical scheme to generate multipartite entangled states in a Josephson planar-designed architecture is reported. This scheme improves the one published by Migliore [Phys. Rev. B 74, 104503 (2006)] since it speeds up the generation of W entangled states in an MxN array of inductively coupled Josephson flux qubits by reducing the number of necessary steps. In addition, the same protocol is shown to be able to transfer the W state from one row to the other.