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shifushuimenu / sse-tfi

Stochastic series expansion QMC for transverse-field Ising model with periodic frustrated interactions (triangular plaquette updates and efficient treatment of long-range interactions included)
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implement fast discrete cosine/sine Fourier transform in the subroutine DCSFT #1

Open shifushuimenu opened 4 years ago

shifushuimenu commented 4 years ago

implement fast discrete cosine/sine Fourier transform in the subroutine DCSFT, which is the bottleneck for computing imaginary-time correlation functions

shifushuimenu commented 4 years ago

crystallographic lattice fast Fourier transform see: https://bones.swmed.edu/crystaFFT.html