langevin_Momentum.h

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#ifndef LANGEVIN_MOMENTUM_INCLUDED
#define LANGEVIN_MOMENTUM_INCLUDED
 
#include "Field/field_G.h"
#include "Parameters/parameters.h"
#include "Tools/generatorSet_Mat_SU_N.h"
 
#include "IO/bridgeIO.h"
using Bridge::vout;
 
class RandomNumbers;
 
 
class Langevin_Momentum
{
 private:
  RandomNumbers *m_rand;
  Bridge::VerboseLevel m_vl;
 
 public:
  Langevin_Momentum(RandomNumbers *rand) :
    m_vl(CommonParameters::Vlevel())
  {
    m_rand = rand;
  }
 
  ~Langevin_Momentum() {}
 
 private:
  // non-copyable
  Langevin_Momentum(const Langevin_Momentum&);
  Langevin_Momentum& operator=(const Langevin_Momentum&);
 
 public:
  double set_iP(Field_G& iP);
 
 private:
  double set_iP_SU3(Field_G& iP);
 
  double set_iP_general_SU_N(Field_G& iP);
 
  double set_iP_SU3_alt(Field_G& iP);
};
#endif