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Quantum control, quantum information processing, and quantum-limited metrology with trapped ions
D. J. Wineland, D. Leibfried, M. D. Barrett +21
We briefly discuss recent experiments on quantum information processing using trapped ions at NIST. A central theme of this work has been to increase our capabilities in terms of q…
Constraints on Yukawa-Type Deviations from Newtonian Gravity at 20 Microns
S. J. Smullin, A. A. Geraci, D. M. Weld +3
Recent theories of physics beyond the standard model have predicted deviations from Newtonian gravity at short distances. In order to test these theories, we have a built an appara…
Long-lived qubit memory using atomic ions
C. Langer, R. Ozeri, J. D. Jost +13
We demonstrate experimentally a robust quantum memory using a magnetic-field-independent hyperfine transition in 9Be+ atomic ion qubits at a magnetic field B ~= 0.01194 T. We obser…
Hyperfine Coherence in the Presence of Spontaneous Photon Scattering
R. Ozeri, C. Langer, J. D. Jost +11
The coherence of a hyperfine-state superposition of a trapped Be ion in the presence of off-resonant light is experimentally studied. It is shown that Rayleigh elastic sc…
Surface-Electrode Architecture for Ion-Trap Quantum Information Processing
J. Chiaverini, R. B. Blakestad, J. Britton +5
We investigate a surface-mounted electrode geometry for miniature linear radio frequency Paul ion traps. The electrodes reside in a single plane on a substrate, and the pseudopoten…