Demonstration of three- and four-body interactions between trapped-ion spins

ORAL

Abstract

Quantum processors use the native interactions between effective spins to simulate Hamiltonians or execute quantum gates. In most processors, the native interactions are pairwise, limiting the efficiency of controlling entanglement between many qubits. Here we experimentally demonstrate a new class of native interactions between trapped-ion qubits, extending conventional pairwise interactions to higher order. We realize three- and four-body spin interactions as examples, showing that high-order spin polynomials may serve as a new toolbox for quantum information applications.

*This work is supported by the ARO through the IARPA LogiQ program; the NSF STAQ and QLCI programs; the DOE QSA program; the AFOSR MURIs on Dissipation Engineering in Open Quantum Systems, Quantum Measurement/ Verification, and Quantum Interactive Protocols; the ARO MURI on Modular Quantum Circuits; and the DOE HEP QuantISED Program.

–

Publication: O. Katz, L. Feng, A. Risinger, C. Monroe, M. Cetina, arXiv:2209.05691 (2022).
O. Katz, M. Cetina, C. Monroe, arxiv:2207.10550 (2022).
O. Katz, M. Cetina, C. Monroe, Phys. Rev. Lett. 129, 063603 (2022).

Presenters

  • Or Katz

    • Duke Quantum Center and Department of Electrical and Computer Engineering (and Physics), Duke University, Durham, NC
    • Duke University
    • Duke Quantum Center and Department Electrical and Computer Engineering (and Physics), Duke University, Durham, NC

Authors

  • Or Katz

    • Duke Quantum Center and Department of Electrical and Computer Engineering (and Physics), Duke University, Durham, NC
    • Duke University
    • Duke Quantum Center and Department Electrical and Computer Engineering (and Physics), Duke University, Durham, NC

  • Lei Feng

    • Duke Quantum Center and Department of Electrical and Computer Engineering (and Physics), Duke University, Durham, NC
    • Duke University
    • DQC, Department of ECE and Physics,Duke University

  • Andrew Risinger

    • JQI and QuICS and Departments of Physics and ECE, University of Maryland, College Park, MD 20742

  • Christopher Monroe

    • Duke Quantum Center and Department of Electrical and Computer Engineering (and Physics), Duke University, Durham, NC; IonQ, Inc., College Park, MD 20740
    • Duke University
    • Duke Quantum Center and Department of Electrical and Computer Engineering (and Physics), Duke University, Durham, NC; IonQ, Inc., College Park, MD
    • Duke Quantum Center; Duke Physics & Electrical and Computer Engineering; Joint Quantum Institute; University of Maryland, College Park; IonQ
    • Duke University and IonQ, Inc.
    • Duke Quantum Center; Duke Physics; Duke Electrical and Computer Engineering; Joint Quantum Institute; University of Maryland, College Park; IonQ

  • Marko Cetina

    • Duke Quantum Center and Department of Physics, Duke University, Durham, NC
    • Duke University