Scalar BEC evolution functions#
The evolution of the condensate is handle by one simple function
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Propagates the wavefunction forward one time step. |
This function propagates the wavefunction forward one time step. To evolve the wavefunction for \(N_t\) time steps, simply call this function in a loop \(N_t\) times. The evolution functions are purposely hidden behind this interface function to simplify the user experience.
The evolution functions are implemented using a second-order split-step algorithm. See here for more details on the numerical implementation.
Warning
The evolution functions are constructed so that the Fourier-space part is computed first.
Ensure that you update the Fourier-space arrays prior to any evolution by calling the fft() method
of the Wavefunction class.