Simultaneous cooling of axial vibrational modes in a linear ion trap

Christof Wunderlich, Giovanna Morigi, Dirk Reif

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13 Citations (Scopus)

Abstract

In order to use a collection of trapped ions for experiments where a well-defined preparation of vibrational states is necessary, all vibrational modes have to be cooled to ensure precise and repeatable manipulation of the ions quantum states. A method for simultaneous sideband cooling of all axial vibrational modes is proposed. By application of a magnetic field gradient the absorption spectrum of each ion is modified such that sideband resonances of different vibrational modes coincide. The ion string is then irradiated with monochromatic electromagnetic radiation, in the optical or microwave regime, for sideband excitation. This cooling scheme is investigated in detailed numerical studies. Its application for initializing ion strings for quantum information processing is extensively discussed. © 2005 The American Physical Society.
Original languageEnglish
Article number023421
JournalPhysical Review A - Atomic, Molecular, and Optical Physics
Volume72
DOIs
Publication statusPublished - 1 Aug 2005

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