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cond-mat.str-el2026
Numerical evidence of a critical point in the (2+1)D SO(5) nonlinear sigma model with Wess-Zumino-Witten term
Yuan Da Liao, Bin-Bin Chen, Junchen Rong +3
We develop an optimized continuous-field quantum Monte Carlo (QMC) algorithm to investigate the projected SO(5) nonlinear sigma model with a Wess-Zumino-Witten term, which describe…
cond-mat.str-el2026
Emergent relativistic symmetry from interacting fermions on the honeycomb bilayer
Zi Hong Liu, Lukas Janssen
We study the phase diagram of interacting spinless fermions on the honeycomb bilayer at charge neutrality using large-scale quantum Monte Carlo simulations. In the noninteracting l…
cond-mat.str-el2025★ 4 cited
Fractionalized fermionic multicriticality in anisotropic Kitaev spin-orbital liquids
Max Fornoville, Lukas Janssen
We study the low-temperature phase diagram of quantum Kitaev-Heisenberg spin-orbital models with XXZ anisotropy on the honeycomb lattice. Within a parton mean-field theory, we iden…