NDLI: i EXPERIMENTS AT NIST WITH TRAPPED IONS: 3-D ZERO-POINT COOLING, QUANTUM GATES, BRAGG SCATTERING, AND ATOMIC CLOCKS*

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i EXPERIMENTS AT NIST WITH TRAPPED IONS: 3-D ZERO-POINT COOLING, QUANTUM GATES, BRAGG SCATTERING, AND ATOMIC CLOCKS*

Content Provider	CiteSeerX
Author	Monroe, C. Barton, As. Bergquist, J. C. Bollinger, J. J. Cruz, F. Itano, W. M. Jefferts, S. R. Jelenkovic, B. M. King, B. E. Miller, J. D. Poitzsch, M. E. Tan, J. N. Wineland, D. J.
Abstract	We have recently used stimulated-Raman transitions in the resolved sideband regime to cool single ions to the n = 0 zero-point energy. This has allowed realizations of the Jaynes-Cummings model interaction for atomic motion and a quantum controlled-NOT gate applicable to a quantum computer. Bragg scattering has revealed long-range order in a sample of = l @ laser-cooled ions in a Penning trap. Progress toward the realization of a cryogenically-pumped trapped ion frequency standard is reported. 1. Coherent Quantum Manipulation of a Single Trapped Ion 1.1 Raman sideband cooling We report cooling of a single happed ion to the n = 0 state with the technique of resolved-sideband Raman cooling ' (n is the quantum number of the (harmonic) ion motion). A %e ' ion is held in a strong rf (Paul) ion trap ' with vibrational frequencies (w,,wy,03/2a- = (11.1, 18.0, 29.5) MHz. We identify two intemal states, labeled 14) and 1 t), with two 'SI, hyperfine ground states, separated by 4 2 % = 1.250 GHz. Transitions between these states are driven by applying two counterpropagating laser beams tuned so that their difference frequency
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Subject Keyword	Bragg Scattering Quantum Gate Experiment Nist Trapped Ion 3-d Zero-point Cooling Atomic Clock Penning Trap Stimulated-raman Transition Cryogenically-pumped Trapped Ion Frequency Standard Intemal State Strong Rf Single Ion Ion Motion Quantum Computer Difference Frequency Zero-point Energy Laser Beam Resolved Sideband Regime Ion Trap Quantum Number Vibrational Frequency Long-range Order Raman Sideband Hyperfine Ground State Jaynes-cummings Model Interaction Single Trapped Ion Atomic Motion Quantum Controlled-not Gate Coherent Quantum Manipulation Resolved-sideband Raman Laser-cooled Ion Single Happed Ion
Content Type	Text

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