Sign-free DQMC on three-valley Hubbard models at three electrons per cell maps an extended intermediate-coupling regime with competing local-moment formation and itinerancy, plus U(6) crossovers to ordered states, for near-isotropic interactions relevant to materials like twisted SnSe2.
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cond-mat.str-el 2years
2026 2verdicts
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Derives local Wess-Zumino terms for SU(3) and SU(4) superspins by identifying the phase space with CP^{N-1} and building on the SU(2) coherent-state path integral.
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Hidden antiferromagnetism, persistent valley fluctuations, and $U(6)$ crossovers in triangular-lattice M-point moir\'e materials via determinantal quantum Monte Carlo
Sign-free DQMC on three-valley Hubbard models at three electrons per cell maps an extended intermediate-coupling regime with competing local-moment formation and itinerancy, plus U(6) crossovers to ordered states, for near-isotropic interactions relevant to materials like twisted SnSe2.
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Wess-Zumino terms in 0+1 SU(N) superspin systems
Derives local Wess-Zumino terms for SU(3) and SU(4) superspins by identifying the phase space with CP^{N-1} and building on the SU(2) coherent-state path integral.