Using optical pulse shaping to entangle individual ions in a chain by coupling to multiple motional modes

POSTER

Abstract

We present progress in an anharmonic linear trap that produces a uniformly-spaced chain of $^{171}$Yb$^{+}$ ions that allows for individual optical addressing. When 355 nm laser beams are directed to the target ions, Raman transitions can be driven to couple ion qubit states through their collective transverse motional modes [1]. By optimizing the parameters of the applied laser pulse sequences, simultaneous coupling to multiple modes of motion may allow for high gate fidelity while increasing the gate speed [2]. Here, we show simulations that optimize the intensities, duration, and detuning of the laser pulses as well as our preliminary results for implementing this scheme. \\[4pt] [1] G.-D. Lin, et al., \textit{Europhys. Lett.} \textbf{86}, 60004 (2009)\\[0pt] [2] S-L. Zhu, et al., \textit{Europhys. Lett.} \textbf{73}, 485491 (2006)

*This work is supported by grants from the U.S. Army Research Office with funding from the DARPA OLE program, IARPA, and the MURI program; the NSF PIF program; the NSF Physics Frontier Center at JQI; and the European Commission AQUTE program.

Authors

  • Taeyoung Choi

    • JQI and Physics Department, University of Maryland, College Park, MD 20742

  • T.A. Manning

    • JQI and Department of Physics, University of Maryland, College Park, MD 20742
    • JQI and Physics Department, University of Maryland, College Park, MD 20742

  • S. Debnath

    • JQI and Department of Physics, University of Maryland, College Park, MD 20742
    • JQI and Physics Department, University of Maryland, College Park, MD 20742

  • B. Fields

    • JQI and Department of Physics, University of Maryland, College Park, MD 20742
    • JQI and Physics Department, University of Maryland, College Park, MD 20742

  • Chris Monroe

    • JQI and Department of Physics, University of Maryland, College Park, MD 20742
    • Joint Quantum Institute, University of Maryland Department of Physics and National Institute of Standards and Technology, College Park, Maryland 20742
    • University of Maryland and JQI
    • JQI and Physics Department, University of Maryland, College Park, MD 20742