physical_constants.h++

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/*
 *Contains physical constants and derived constants
 

    Copyright (C) 2010 Joseph Pingenot

    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU Affero General Public License as published by
    the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.

    This program 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 Affero General Public License for more details.

    You should have received a copy of the GNU Affero General Public License
    along with this program.  If not, see <http://www.gnu.org/licenses/>.

*/

#ifndef __PHYSICAL_CONSTANTS_HXX___
#define __PHYSICAL_CONSTANTS_HXX___

#include <libkdotp/gcc_hints.h>

namespace kdp {
  namespace constants {

/*hbar, in eV s*/
extern double hbar;
/*mass of electron in eV*/
extern double m0;
/*Charge of the elecron in C*/
extern double q_e;
/*Magnitude of the charge of the electron in C*/
extern double e;
/*Speed of light in m/s*/
extern double c;
/*vacuum dielectric constant F/m*/
extern double epsilon0;

extern double ev_in_hartree;
extern double hartree_in_ev;
extern double bohr_in_meters;
extern double bohr_in_nmeters;

___const double ev_to_hartree(double ev);

___const double hartree_to_ev(double hartree);

___const double bohr_to_m(double bohr);

___const double m_to_bohr(double m);

___const double bohr_to_nm(double bohr);

___const double nm_to_bohr(double nm);

  }
}


#endif