Quantum Spin Liquid with Emergent Chiral Order in the Triangular-lattice Hubbard Model

ORAL

Abstract

The interplay between spin frustration and charge fluctuation gives rise to an exotic quantum state in the intermediate-interaction regime of the half-filled triangular-lattice Hubbard (TLU) model, while the nature of the state is under debate. Using the density matrix renormalization group with SU(2)spin U(1)charge symmetries implemented, we study the TLU model defined on long cylindrical geometries. Here we discuss our current progress on the gapped chiral Kalmeyer-Laughlin quantum spin liquid encountered in the TLU at intermediate onsite interaction 9 < U / t < 10.75 in between the metallic and the antiferromagnetic Mott insulating phases.

*Funded by German Research foundation DFG WE4819/3-1and U.S. Department of Energy, Office of Basic Energy Sciences

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Publication: arXiv:2102.05560 [cond-mat.str-el]

Presenters

  • Andreas Weichselbaum

    • Brookhaven National Laboratory

Authors

  • Andreas Weichselbaum

    • Brookhaven National Laboratory

  • Bin-Bin Chen

    • University of Hong Kong, China

  • Wei Li

    • Beihang University, Beijing, China

  • Ziyu Chen

    • Beihang University, Beijing, China

  • Shou-Shu Gong

    • Beihang University, Beijing, China

  • Donna Sheng

    • California State University, Northridge