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 Quantum computing with magnetic atoms in optical lattices of reduced periodicity


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We investigate the feasibility of combining Raman optical lattices with a quantum computing architecture based on lattice-confined magnetically interacting neutral atoms. A particular advantage of the standing Raman field lattices comes from reduced interatomic separations leading to increased interatomic interactions and improved multi-qubit gate performance. Specifically, we analyze a $J=3-2$ Zeeman system placed in $% \sigma {+}-\sigma {-}$ Raman fields which exhibit $\lambda -4$ periodicity. We find that the resulting CNOT gate operations times are in the order of millisecond. We also investigate motional and magnetic-field induced decoherences specific to the proposed architecture.



Author: Boris Ravaine; Andrei Derevianko; P. R. Berman

Source: https://archive.org/







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