Emergent Fermi surface in a triangular-lattice SU(4) quantum antiferromagnet

Abstract

Motivated by multiple possible physical realizations, we study the SU(4) quantum antiferromagnet with a fundamental representation on each site of the triangular lattice. We provide evidence for a gapless liquid ground state of this system with an emergent Fermi surface of fractionalized fermionic partons coupled with a U(1) gauge field. Our conclusions are based on numerical simulations using the density matrix renormalization group (DMRG) method, which we support with a field theory analysis.

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Cited by in corpus (19)

• SU(4) chiral spin liquid, exciton supersolid and electric detection in moiré bilayers
• Universal thermodynamics of an SU($N$) Fermi-Hubbard Model
• The Orbitally Selective Mott Phase in Electron Doped Twisted TMDs: A Possible Realization of the Kondo Lattice Model
• Topological chiral spin liquids and competing states in triangular lattice SU($N$) Mott insulators
• Structure of Spin Correlations in High Temperature SU($N$) Quantum Magnets
• $\mathrm{SU}(4)$-Symmetric Quantum Spin-Orbital Liquids on Various Lattices
• Unveiling a critical stripy state in the triangular-lattice SU(4) spin-orbital model
• Twisting the Dirac cones of the SU(4) spin-orbital liquid on the honeycomb lattice
• Intertwining SU($N$) symmetry and frustration on a honeycomb lattice
• Frustrated Kondo impurity triangle: A simple model of deconfinement
• Tunable exciton valley-pseudospin orders in moiré Bose-Hubbard model
• A generalized effective spin-chain formalism for strongly interacting spinor gases in optical lattice
• Thermodynamic signature of the $\mathrm{SU}(4)$ spin-orbital liquid and symmetry fractionalization from the Lieb-Schultz-Mattis theorem
• Spin-valley magnetism on the triangular moiré lattice with SU(4) breaking interactions
• Canted antiferromagnetism in a spin-orbit coupled $S_{\text{eff}}=3/2$ triangular-lattice magnet DyAuGe
• Exact deconfined gauge structures in the higher-spin Yao-Lee model: a quantum spin-orbital liquid with spin fractionalization and non-Abelian anyons
• Long-range spin-orbital order in the spin-orbital SU(2)$\times$SU(2)$\times$U(1) model
• SU(4) Kondo Lattice in Semiconductor Moiré Materials
• The dynamical structure factor of the SU(3) Heisenberg chain: The variational Monte Carlo approach