Phase-stable free-space optical lattices for trapped ions

Abstract

We demonstrate control of the absolute phase of an optical lattice with respect to a single trapped ion. The lattice is generated by off-resonant free-space laser beams, we actively stabilize its phase by measuring its ac-Stark shift on a trapped ion. The ion is localized within the standing wave to better than 2\% of its period. The locked lattice allows us to apply displacement operations via resonant optical forces with a controlled direction in phase space. Moreover, we observe the lattice-induced phase evolution of spin superposition states in order to analyze the relevant decoherence mechanisms. Finally, we employ lattice-induced phase shifts for inferring the variation of the ion position over 157~$\mu$m range along the trap axis at accuracies of better than 6~nm.

5 pages, 4 figures

References in corpus (10)

• Single-Atom Resolved Fluorescence Imaging of an Atomic Mott Insulator
• Systematic evaluation of an atomic clock at 2e-18 total uncertainty
• Quantum harmonic oscillator state synthesis by reservoir engineering
• Tuning friction atom-by-atom in an ion-crystal simulator
• Spin-motion entanglement and state diagnosis with squeezed oscillator wavepackets
• Sideband cooling and coherent dynamics in a microchip multi-segmented ion trap
• Experimental realization of fast ion separation in segmented Paul traps
• Long-lived mesoscopic entanglement outside the Lamb-Dicke regime
• Pinning an Ion with an Intracavity Optical Lattice
• Modulating carrier and sideband coupling strengths in a standing wave gate beam

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