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PoissonSolverBoundaries

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PoissonSolverBoundaries

Section Hamiltonian::Poisson
Type integer
Default multipole

For finite systems, some Poisson solvers (multigrid, cg_corrected, and fft with PoissonFFTKernel = multipole_correction) require the calculation of the boundary conditions with an auxiliary method. This variable selects that method.

Options:

multipole:
A multipole expansion of the density is used to approximate the potential on the boundaries.
exact:
An exact integration of the Poisson equation is done over the boundaries. This option is experimental, and not implemented for domain parallelization.

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