1 files changed, 28 insertions, 0 deletions
diff --git a/Source/FieldSolver/SpectralSolver/SpectralAlgorithms/PsatdAlgorithm.H b/Source/FieldSolver/SpectralSolver/SpectralAlgorithms/PsatdAlgorithm.H
new file mode 100644
index 000000000..12718e38b
--- /dev/null
+++ b/Source/FieldSolver/SpectralSolver/SpectralAlgorithms/PsatdAlgorithm.H
@@ -0,0 +1,28 @@
+#ifndef WARPX_PSATD_ALGORITHM_H_
+#define WARPX_PSATD_ALGORITHM_H_
+
+#include <SpectralBaseAlgorithm.H>
+
+/* \brief Class that updates the field in spectral space
+ * and stores the coefficients of the corresponding update equation.
+ */
+class PsatdAlgorithm : public SpectralBaseAlgorithm
+{
+
+    public:
+        PsatdAlgorithm(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::Real dt);
+
+        void InitializeSpectralCoefficients(const SpectralKSpace& spectral_kspace,
+                                    const amrex::DistributionMapping& dm, 
+                                    const amrex::Real dt);
+
+        void pushSpectralFields(SpectralFieldData& f) const override final;
+
+    private:
+        SpectralCoefficients C_coef, S_ck_coef, X1_coef, X2_coef, X3_coef;
+};
+
+#endif // WARPX_PSATD_ALGORITHM_H_