Infinite PEPS simulations find a direct Néel-to-QSL transition at J2/J1 ≈ 0.08 in the triangular J1-J2 model and indicate the QSL is gapless, consistent with a U(1) Dirac spin liquid.
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Investigation of the $J_1$-$J_2$ Heisenberg model on the triangular lattice: A study with projected entangled-pair states
Infinite PEPS simulations find a direct Néel-to-QSL transition at J2/J1 ≈ 0.08 in the triangular J1-J2 model and indicate the QSL is gapless, consistent with a U(1) Dirac spin liquid.