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Robust qudit hamiltonian engineering with spherical 2(d-1)-designs

POSTER

Abstract

Reshaping a native interaction into a desired form via pulsed coherent control, so-called Hamiltonian engineering, is a ubiquitous technique in quantum science. In this work, we provide a group-theoretic classification for conditions a pulse-sequence must satisfy in order to transform a native qudit interaction into a one with a desired continuous symmetry, which can be one of the many continuous subgroups of $SU(d)$. We find that spherical $2(d-1)$-designs associated to suitably generalized Bloch spheres can be used to construct universal and experimentally robust pulse sequences required to engineer these symmetries. Our approach offers an efficient method for quantum simulation with global control, opening the door to near-term applications ranging from high-spin entanglement enhanced sensing to quantum simulation of non-abelian lattice gauge theories.

Presenters

  • Nathaniel T Leitao

    Harvard University

Authors

  • Nathaniel T Leitao

    Harvard University

  • Haoyang Gao

    Harvard University

  • Leigh S Martin

    Harvard University

  • Hengyun Zhou

    Harvard University

  • Iris Cong

    Harvard University

  • Mikhail D Lukin

    Harvard University