A matrix-free FFT-based eigensolver computes Bogoliubov-de Gennes excitation spectra of spin-1 Bose-Einstein condensates with spectral accuracy in 1D, 2D, and 3D.
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An efficient Fourier spectral algorithm for the Bogoliubov-de Gennes excitation eigenvalue problem
A matrix-free FFT-based eigensolver computes Bogoliubov-de Gennes excitation spectra of spin-1 Bose-Einstein condensates with spectral accuracy in 1D, 2D, and 3D.