Quantum computing with magnetic atoms in optical lattices of reduced periodicity

Details Quantum computing with magnetic atoms in optical lattices of reduced periodicity Quantum computing with magnetic atoms in optical lattices of reduced periodicity

2006-06-20

arxiv.org/abs/quant-ph/0606162v2

Physics

Quantum Physics

Scientific paper

10.1103/PhysRevA.74.022330

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.

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