Laser-free trapped-ion entangling gates with simultaneous insensitivity to qubit and motional decoherence

Sutherland, R. T.; Srinivas, R.; Burd, S. C.; Knaack, H. M.; Wilson, A. C.; Wineland, D. J.; Leibfried, D.; Allcock, D. C.; Slichter, D. H.; Libby, S. B.

doi:10.1103/physreva.101.042334

Title: Laser-free trapped-ion entangling gates with simultaneous insensitivity to qubit and motional decoherence

Journal Article · Wed Apr 29 00:00:00 EDT 2020 · Physical Review A

DOI:https://doi.org/10.1103/physreva.101.042334· OSTI ID:1661040

^[1]; Srinivas, R. ^[2];

^[2];

^[2]; Wilson, A. C. ^[3]; Wineland, D. J. ^[4]; Leibfried, D. ^[3];

^[4]; Slichter, D. H. ^[3];

^[1]

Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
National Inst. of Standards and Technology (NIST), Boulder, CO (United States); Univ. of Colorado, Boulder, CO (United States)
National Inst. of Standards and Technology (NIST), Boulder, CO (United States)
National Inst. of Standards and Technology (NIST), Boulder, CO (United States); Univ. of Colorado, Boulder, CO (United States); Univ. of Oregon, Eugene, OR (United States)

The dominant error sources for state-of-the-art laser-free trapped-ion entangling gates are decoherence of the qubit state and the ion motion. The effect of these decoherence mechanisms can be suppressed with additional control fields or with techniques that have the disadvantage of reducing gate speed. In this study, we propose using a near-motional-frequency magnetic field gradient to implement a laser-free gate that is simultaneously resilient to both types of decoherence, does not require additional control fields, and has a relatively small cost in gate speed.

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Research Organization:: Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)

Sponsoring Organization:: USDOE National Nuclear Security Administration (NNSA)

Grant/Contract Number:: AC52-07NA27344

OSTI ID:: 1661040

Report Number(s):: LLNL-JRNL-792460; 990776; TRN: US2203577

Journal Information:: Physical Review A, Vol. 101, Issue 4; ISSN 2469-9926

Publisher:: American Physical Society (APS)Copyright Statement

Country of Publication:: United States

Language:: English

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Cited by: 17 works

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Title: Laser-free trapped-ion entangling gates with simultaneous insensitivity to qubit and motional decoherence

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