Quantum dense coding with atomic qubits.

نویسندگان

  • T Schaetz
  • M D Barrett
  • D Leibfried
  • J Chiaverini
  • J Britton
  • W M Itano
  • J D Jost
  • C Langer
  • D J Wineland
چکیده

We report the implementation of quantum dense coding on individual atomic qubits with the use of two trapped 9Be+ ions. The protocol is implemented with a complete Bell measurement that distinguishes the four operations used to encode two bits of classical information. We measure an average transmission fidelity of 0.85(1) and determine a channel capacity of 1.16(1).

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عنوان ژورنال:
  • Physical review letters

دوره 93 4  شماره 

صفحات  -

تاریخ انتشار 2004