Realizing Fractional Chern Insulators with Dipolar Spins

ORAL

Abstract

Strongly correlated quantum systems can exhibit exotic behavior that is determined and controlled by topology. Such topological systems are of interest because they constitute fundamentally new states of matter exhibiting fractionalized excitations and robust chiral edge modes. We theoretically predict that the nu = 1/2 fractional Chern insulator, a recently proposed topological state of lattice bosons, arises naturally in a two-dimensional array of driven, dipolar-interacting spins.

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Authors

  • Norman Yao

    Harvard University

  • Christopher Laumann

    Harvard University

  • Andreas Lauchli

    Institut f\"ur Theoretische Physik, Universit\"at Innsbruck, A-6020 Innsbruck, Austria, University of Innsbruck

  • Eugene Demler

    Harvard University, Harvard University Physics Department

  • Jun Ye

    JILA, CU Boulder, University of Colorado, Boulder

  • Peter Zoller

    University of Innsbruck

  • Mikhail Lukin

    Harvard University

  • Alexey Gorshkov

    IQI, IQIM, California Institute of Technology, IQI, Caltech, Pasadena, CA 91125, USA, California Institute of Technology