kink_profile_guesser.hpp

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/*
 * This file is part of BubbleProfiler.
 *
 * BubbleProfiler is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * BubbleProfiler is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with BubbleProfiler.  If not, see <http://www.gnu.org/licenses/>.
 */

#ifndef BUBBLEPROFILER_KINK_PROFILE_GUESSER_HPP_INCLUDED
#define BUBBLEPROFILER_KINK_PROFILE_GUESSER_HPP_INCLUDED

#include "basic_logger.hpp"
#include "profile_guesser.hpp"

#include <Eigen/Core>

#include <array>

namespace BubbleProfiler {

class Kink_profile_guesser : public Profile_guesser {
public:
   virtual ~Kink_profile_guesser() = default;

   virtual Field_profiles get_profile_guess(const Potential&,
                                            const Eigen::VectorXd&,
                                            int, double, double,
                                            double, double) override;

   void set_trial_distance(double dist) { trial_dist = dist; }

   void set_max_domain_start(double r);

   void set_min_domain_end(double r);

private:
   const static std::array<double,46> alpha_grid_3d;
   const static std::array<double, 50> alpha_grid_thin_3d;
   const static std::array<double,46> phi0_grid_3d;
   const static std::array<double,46> delta_grid_3d;
   const static std::array<double, 50> delta_grid_thin_3d;
   const static std::array<double,46> lw_grid_3d;

   const static std::array<double,44> alpha_grid_4d;
    const static std::array<double, 50> alpha_grid_thin_4d;
   const static std::array<double,44> phi0_grid_4d;
   const static std::array<double,44> delta_grid_4d;
    const static std::array<double, 50> delta_grid_thin_4d;
   const static std::array<double,44> lw_grid_4d;

   double trial_dist{0.5};
   double max_domain_start{1.e-8};
   double min_domain_end{4.};
   double alpha{0.5};
   double aE{1.};
   double phi0{0.};
   double delta{0.};
   double lw{0.};
   double dist_true_vacuum{0.};
   int num_fields{0};

   Eigen::MatrixXd cob_matrix{};
   logging::Basic_logger logger{};

   void compute_vacuum_distance(const Potential&, const Eigen::VectorXd&);
   void calculate_potential_parameters(const Potential&,
                                       const Eigen::VectorXd&);
   void fit_ansatz_parameters(const Potential&,
                              const Eigen::VectorXd&, int);
   double evaluate_ansatz_at(double) const;
   double evaluate_ansatz_deriv_at(double) const;
   double guess_domain_start() const;
   double guess_domain_end() const;

   double alpha_threshold = 0.514;

   Field_profiles calculate_field_profiles(int, double, double, double, double);
};

} // namespace BubbleProfiler

#endif