ABACUS/src/EXECS/LiebLin_TBA.cc

/**********************************************************

This software is part of J.-S. Caux's ABACUS library.

Copyright (c) J.-S. Caux.

-----------------------------------------------------------

File:  LiebLin_TBA.cc

Purpose:  solves the TBA equations for Lieb-Liniger

***********************************************************/

#include "ABACUS.h"

using namespace std;
using namespace ABACUS;

int main(int argc, const char* argv[])
{

  //if (argc != 7) ABACUSerror("Wrong number of arguments to 2CBG_ThLim executable.  Use c(best to set to 1), nbar, ebar, req_diff, Max_Secs, bool Save_data (0 == false).");
  if (argc != 6) ABACUSerror("Wrong number of arguments.  Use c(best to set to 1), mu, kBT, req_diff, Max_Secs");

  DP c_int = atof(argv[1]);
  DP mu = atof(argv[2]);
  DP kBT = atof(argv[3]);
  DP req_diff = atof(argv[4]);
  int Max_Secs = atoi(argv[5]);

  if (c_int <= 0.0) ABACUSerror("Give a strictly positive c.");
  if (kBT <= 0.0) ABACUSerror("Negative T ?  Not for the LiebLin gas.");
  if (Max_Secs < 10) ABACUSerror("Give more time.");

  //cout << "Read c_int = " << c_int << "\tmu = " << mu << "\tOmega = " << Omega << "\tkBT = " << kBT << "\tMax_Secs = " << Max_Secs << endl;

  LiebLin_TBA_Solution  solution(c_int, mu, kBT, req_diff, Max_Secs);


  cout << solution.nbar << "\t" << solution.ebar << "\t" << solution.sbar << "\t";

  return(0);
}