Quantum spin-ordered states for the frustrated XY model on the honeycomb lattice

ORAL

Abstract

We consider the frustrated XY model on the honeycomb lattice and determine the stability of several classical spin states supplemented with a long-range Jastrow factor that introduces quantum fluctuations. In particular, we focus on the competition between antiferromagnetic, collinear, and generic spiral order upon increase of frustration. Our investigation is based on Variational Monte Carlo calculations.

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Authors

  • Andrea Di Ciolo

    University of Maryland, College Park and Georgetown University, Joint Quantum Institute, University of Maryland and Georgetown University

  • Juan Carrasquilla

    Georgetown University and Pennsylvania State University, Georgetown University and The Pennsylvania State University

  • Federico Becca

    CNR-IOM-Democritos National Simulation Centre and SISSA, Via Bonomea 265, I-34136, Trieste, Italy, International School for Advanced Studies and CNR-Istituto Officina dei Materiali (Trieste)

  • Victor Galitski

    University of Maryland, College Park, The University of Maryland College Park, Joint Quantum Institute, University of Maryland

  • Marcos Rigol

    Pennsylvania State University, Georgetown University, Penn State University, Penn State University, Georgetown University, Georgetown University and Pennsylvania State University