Hamiltonian estimation in trapped ion quantum simulators

POSTER

Abstract

Analog quantum simulators use native interactions between effective spins (qubits) to study complicated Hamiltonians. Characterizing a Hamiltonian's parameters is essential to have faith in the results of a quantum simulation. However, efficient full characterization of a general many-body Hamiltonian is challenging. Here, we explore new strategies for estimating Hamiltonian parameters by implementing the quantum-quench protocol [1] on our trapped Yb+ ion system with intrinsic long-range interactions. We also develop a new experimental tool for shelving a subset of our hyperfine qubits into an auxiliary Zeeman level within the detection manifold, preserving Hamiltonian terms on the remaining subsystem. We investigate the quench protocol and its interplay with our shelving tool to improve overall efficiency of a Hamiltonian estimation procedure.

[1] Phys. Rev. Lett. 124, 160502 (2020)

*We acknowledge financial support from University of Waterloo, NSERC, NFRF, CFREF, and the Ontario Government. Research at Perimeter Institute is supported in part by the Government of Canada through the Department of Innovation, Science and Industry Canada and by the Province of Ontario through the Ministry of Colleges and Universities.

Presenters

  • Yu-Ting Chen

    • Institute for Quantum Computing

Authors

  • Yu-Ting Chen

    • Institute for Quantum Computing

  • Anthony Vogliano

    • University of Waterloo

  • Liujun Zou

    • Perimeter Institute

  • Lewis Hahn

    • University of Waterloo

  • Jingwen Zhu

    • University of Waterloo

  • Nikhil Kotibhaskar

    • University of Waterloo

  • Chung-You Shih

    • University of Waterloo

  • Sainath Motlakunta

    • University of Waterloo

  • Timothy Hsieh

    • Perimeter Institute for Theoretical Physics

  • Rajibul Islam

    • University of Waterloo
    • UWaterloo