Quantum logic spectroscopy with ions in thermal motion
Abstract
A mixed-species geometric phase gate has been proposed for implementing quantum logic spectroscopy on trapped ions that combines probe and information transfer from the spectroscopy to the logic ion in a single pulse. We experimentally realize this method, show how it can be applied as a technique for identifying transitions in currently intractable atoms or molecules, demonstrate its reduced temperature sensitivity, and observe quantum-enhanced frequency sensitivity when it is applied to multi-ion chains. Potential applications include improved readout of trapped-ion clocks and simplified error syndrome measurements for quantum error correction.
Cite
@article{arxiv.1905.02388,
title = {Quantum logic spectroscopy with ions in thermal motion},
author = {D. Kienzler and Y. Wan and S. D. Erickson and J. J. Wu and A. C. Wilson and D. J. Wineland and D. Leibfried},
journal= {arXiv preprint arXiv:1905.02388},
year = {2020}
}
Comments
Changes: Title; description of the basic method; more detail on data analysis and systematic effects