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  • CLEO/Europe and EQEC 2009 Conference Digest
  • (Optica Publishing Group, 2009),
  • paper ED4_5

Entangling two and more ions with collective laser-ion interactions

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Abstract

Laser-ion interactions that collectively couple the pseudo-spins of a string of trapped ions to one of the string’s vibrational inodes [1] have been used by us to entangle a pair of 40Ca+ ions with very high fidelity [2-4]. In addition, we experimentally confirmed that this gate mechanism allows for entangling ions without having recourse to ground state cooling [3], This opens the way to performing an entangling gate after having applied an operation which does not preserve the ions’ motional state like for example state detection.

© 2009 IEEE

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