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 method, which we support with a field theory analysis. © 2020 American Physical Society.
Date Published
Journal
Physical Review Letters
Volume
125
Issue
11
URL
https://www.scopus.com/inward/record.uri?eid=2-s2.0-85091806574&doi=10.1103%2fPHYSREVLETT.125.117202&partnerID=40&md5=5623642d1f79e7774c90a0f19d89232a
DOI
10.1103/PHYSREVLETT.125.117202
Research Area
Group (Lab)
Chao-Ming Jian Group
Funding Source
1720256
1725797
DMR-1920434
GBMF8690