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Realizing two-qubit gates through mode engineering on a trapped-ion quantum computer

Publication ,  Journal Article
Li, M; Nguyen, NH; Green, AM; Amini, J; Linke, NM; Nam, Y
Published in: Physical Review A
February 1, 2025

Two-qubit gates are a fundamental constituent of a quantum computer and typically its most challenging operation. In a trapped-ion quantum computer, this is typically implemented with laser beams which are modulated in amplitude, frequency, phase, or a combination of these. The required modulation becomes increasingly more complex as the quantum computer becomes larger, complicating the control hardware design. Here we develop a simple method to essentially remove the pulse-modulation complexity by engineering the normal modes of the ion chain. We experimentally test the feasibility of the method in a three-ion chain. This opens up the possibility to trade off complexity between the design of the trapping fields and the optical control system, which will help scale the ion-trap quantum computing platform.

Duke Scholars

Published In

Physical Review A

DOI

EISSN

2469-9934

ISSN

2469-9926

Publication Date

February 1, 2025

Volume

111

Issue

2

Related Subject Headings

  • 51 Physical sciences
  • 49 Mathematical sciences
  • 34 Chemical sciences
 

Citation

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Li, M., Nguyen, N. H., Green, A. M., Amini, J., Linke, N. M., & Nam, Y. (2025). Realizing two-qubit gates through mode engineering on a trapped-ion quantum computer. Physical Review A, 111(2). https://doi.org/10.1103/PhysRevA.111.022622
Li, M., N. H. Nguyen, A. M. Green, J. Amini, N. M. Linke, and Y. Nam. “Realizing two-qubit gates through mode engineering on a trapped-ion quantum computer.” Physical Review A 111, no. 2 (February 1, 2025). https://doi.org/10.1103/PhysRevA.111.022622.
Li M, Nguyen NH, Green AM, Amini J, Linke NM, Nam Y. Realizing two-qubit gates through mode engineering on a trapped-ion quantum computer. Physical Review A. 2025 Feb 1;111(2).
Li, M., et al. “Realizing two-qubit gates through mode engineering on a trapped-ion quantum computer.” Physical Review A, vol. 111, no. 2, Feb. 2025. Scopus, doi:10.1103/PhysRevA.111.022622.
Li M, Nguyen NH, Green AM, Amini J, Linke NM, Nam Y. Realizing two-qubit gates through mode engineering on a trapped-ion quantum computer. Physical Review A. 2025 Feb 1;111(2).

Published In

Physical Review A

DOI

EISSN

2469-9934

ISSN

2469-9926

Publication Date

February 1, 2025

Volume

111

Issue

2

Related Subject Headings

  • 51 Physical sciences
  • 49 Mathematical sciences
  • 34 Chemical sciences