Polarizability.h

/*-------------------------------------------------------------------
Copyright 2013 Ravishankar Sundararaman, Kathleen Schwarz

This file is part of JDFTx.

JDFTx 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.

JDFTx 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 JDFTx.  If not, see <http://www.gnu.org/licenses/>.
-------------------------------------------------------------------*/

#ifndef JDFTX_ELECTRONIC_POLARIZABILITY_H
#define JDFTX_ELECTRONIC_POLARIZABILITY_H

#include <electronic/common.h>
#include <core/vector3.h>

struct Polarizability
{
        enum EigenBasis
        {       NonInteracting, 
                External, 
                Total 
        }
        eigenBasis;
        
        double Ecut; 
        int nEigs; 
        
        vector3<> dk; 
        
        string dkFilenamePattern; 
        
        Polarizability();
        void dump(const Everything& e); 
        
private:
        string dkFilename(int ik, string varName) const; 
        friend class PairDensityCalculator;
};

#endif // JDFTX_ELECTRONIC_POLARIZABILITY_H