FFT-accelerated determinant quantum Monte Carlo reaches larger kagome lattices, yielding superfluid critical exponents at Dirac filling and evidence that the proposed triangle-rule CDW is a finite-size effect.
First,[ ( F †) ⊗d ⊗ In ] vj Fourier transforms the input vector vj into a new vector v′ j through FFT
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Accelerated quantum Monte Carlo simulations of the attractive Hubbard model on the kagome lattice
FFT-accelerated determinant quantum Monte Carlo reaches larger kagome lattices, yielding superfluid critical exponents at Dirac filling and evidence that the proposed triangle-rule CDW is a finite-size effect.