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#ifndef WARPX_COMOVING_PSATD_ALGORITHM_H_
#define WARPX_COMOVING_PSATD_ALGORITHM_H_
#include "SpectralBaseAlgorithm.H"
#if WARPX_USE_PSATD
/* \brief Class that updates the field in spectral space and stores the coefficients
* of the corresponding update equation, according to the comoving spectral scheme.
*/
class ComovingPsatdAlgorithm : public SpectralBaseAlgorithm
{
public:
/**
* \brief Class constructor
*/
ComovingPsatdAlgorithm (const SpectralKSpace& spectral_kspace,
const amrex::DistributionMapping& dm,
const int norder_x,
const int norder_y,
const int norder_z,
const bool nodal,
const amrex::Array<amrex::Real,3>& v_comoving,
const amrex::Real dt,
const bool update_with_rho);
/**
* \brief Override the update equations in Fourier space
*/
virtual void pushSpectralFields (SpectralFieldData& f) const override final;
virtual int getRequiredNumberOfFields () const override final
{
return SpectralFieldIndex::n_fields;
}
/* \brief Initialize the coefficients needed in the update equations
*/
void InitializeSpectralCoefficients (const SpectralKSpace& spectral_kspace,
const amrex::DistributionMapping& dm,
const amrex::Real dt);
/**
* \brief Virtual function for current correction in Fourier space.
* This function overrides the virtual function \c CurrentCorrection in the
* base class \c SpectralBaseAlgorithm and cannot be overridden by further
* derived classes.
*
* \param[in,out] field_data All fields in Fourier space
* \param[in,out] current Array of unique pointers to \c MultiFab storing
* the three components of the current density
* \param[in] rho Unique pointer to \c MultiFab storing the charge density
*/
virtual void CurrentCorrection (const int lev,
SpectralFieldData& field_data,
std::array<std::unique_ptr<amrex::MultiFab>,3>& current,
const std::unique_ptr<amrex::MultiFab>& rho) override final;
/**
* \brief Virtual function for Vay current deposition in Fourier space.
* This function overrides the virtual function \c VayDeposition in the
* base class \c SpectralBaseAlgorithm and cannot be overridden by further
* derived classes.
*
* \param[in,out] field_data All fields in Fourier space
* \param[in,out] current Array of unique pointers to \c MultiFab storing
* the three components of the current density
*/
virtual void VayDeposition (const int lev,
SpectralFieldData& field_data,
std::array<std::unique_ptr<amrex::MultiFab>,3>& current) override final;
private:
// Real and complex spectral coefficients
SpectralRealCoefficients C_coef, S_ck_coef;
SpectralComplexCoefficients Theta2_coef, X1_coef, X2_coef, X3_coef, X4_coef;
// k vectors
KVectorComponent kx_vec;
#if (AMREX_SPACEDIM==3)
KVectorComponent ky_vec;
#endif
KVectorComponent kz_vec;
// Additional member variables
amrex::Array<amrex::Real,3> m_v_comoving;
amrex::Real m_dt;
bool m_update_with_rho;
};
#endif // WARPX_USE_PSATD
#endif // WARPX_COMOVING_PSATD_ALGORITHM_H_
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