Precision measurements in ion traps using slowly moving standing waves
arXiv:1105.1710 · doi:10.1007/s00340-011-4740-8
Abstract
The present paper describes the experimental implementation of a measuring technique employing a slowly moving, near resonant, optical standing wave in the context of trapped ions. It is used to measure several figures of merit that are important for quantum computation in ion traps and which are otherwise not easily obtainable. Our technique is shown to offer high precision, and also in many cases using a much simpler setup than what is normally used. We demonstrate here measurements of i) the distance between two crystalline ions, ii) the Lamb-Dicke parameter, iii) temperature of the ion crystal, and iv) the interferometric stability of a Raman setup. The exact distance between two ions, in units of standing wave periods, is very important for motional entangling gates, and our method offers a practical way of calibrating this distance in the typical lab situation.
7 pages, 5 figures
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- Controlling the transport of an ion: Classical and quantum mechanical solutions
- Pinning an Ion with an Intracavity Optical Lattice
- Fast thermometry for trapped ions using dark resonances
- Driven Geometric Phase Gates with Trapped Ions
- Experimental creation and analysis of displaced number states
- Two-dimensional spectroscopy for the study of ion Coulomb crystals
- Magnetic field fluctuations analysis for the ion trap implementation of the quantum Rabi model in the the deep strong coupling regime