Sympathetic cooling of 9Be+ and 24Mg+ for quantum logic

Published

January 1, 2003

Author(s)

Murray D. Barrett, B. L. DeMarco, T Schaetz, Dietrich Leibfried, Joseph W. Britton, J Chiaverini, Wayne M. Itano, Branislav M. Jelenkovic, John D. Jost, Christopher Langer, Till P. Rosenband, David J. Wineland

Abstract

We demonstrate the cooling of a two species ion crystal consisting of one 9Be+ and one 24Mg+ ion. Since the respective cooling transitions of these two species are separated by more than 30 nm, laser manipulation of one ion has negligible effect on the other even when the ions are not individually addressed. As such this is a useful system for reinitializing the motional state in an ion trap quantum computer without affecting the qubit information. Additionally, we have found that the mass difference between ions enables a method for detecting and subsequently eliminating the effects of radio frequency micromotion.

Citation

Physical Review A (Atomic, Molecular and Optical Physics)

Volume

68

Pub Type

Journals

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Citation

Barrett, M. , DeMarco, B. , Schaetz, T. , Leibfried, D. , Britton, J. , Chiaverini, J. , Itano, W. , Jelenkovic, B. , Jost, J. , Langer, C. , Rosenband, T. and Wineland, D. (2003), Sympathetic cooling of ⁹Be⁺ and ²⁴Mg⁺ for quantum logic, Physical Review A (Atomic, Molecular and Optical Physics), [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=104843 (Accessed October 28, 2025)