106 lines
3.7 KiB
C++
106 lines
3.7 KiB
C++
/**********************************************************
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This software is part of J.-S. Caux's ABACUS library.
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Copyright (c) J.-S. Caux.
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-----------------------------------------------------------
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File: Smoothen_LiebLin_DSF.cc
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Purpose: produces .dsf and .ssf files from a .raw file
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***********************************************************/
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#include "ABACUS.h"
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using namespace std;
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using namespace ABACUS;
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int main(int argc, char* argv[])
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{
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if (argc != 13) { // Print out instructions
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cout << endl << "Welcome to ABACUS\t(copyright J.-S. Caux)." << endl;
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cout << endl << "Usage of Smoothen_LiebLin_DSF executable: " << endl;
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cout << endl << "Provide the following arguments:" << endl << endl;
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cout << "char whichDSF \t\t Which structure factor should be calculated ? Options are: "
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"d for rho rho, g for psi psi{dagger}, o for psi{dagger} psi" << endl;
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cout << "DP c_int \t\t Value of the interaction parameter" << endl;
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cout << "DP L \t\t\t Length of the system" << endl;
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cout << "int N \t\t\t Number of particles" << endl;
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cout << "int iKmin" << endl << "int iKmax \t\t Min and max momentum integers" << endl;
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cout << "DP kBT \t\t Temperature" << endl;
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cout << "int DiK \t\t\t Window of iK over which DSF is averaged (DiK == 0 means a single iK is used; "
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"DiK == 1 means 3 are used (iK-1, iK, iK+1), etc.)" << endl;
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cout << "DP ommin" << endl << "DP ommax \t\t Min and max frequencies to cover in smoothened DSF" << endl;
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cout << "Nom \t\t\t Number of frequency points used for discretization" << endl;
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cout << "DP width \t\t Gaussian width used in smoothing, in units of two-particle level spacing" << endl;
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cout << endl << "EXAMPLE: " << endl << endl;
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cout << "Smoothen_LiebLin_DSF d 1.0 100.0 100 0 200 5.0 1 0.0 10.0 500 2.0" << endl << endl;
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}
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else if (argc == 13) { // !fixed_iK
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char whichDSF = *argv[1];
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DP c_int = atof(argv[2]);
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DP L = atof(argv[3]);
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int N = atoi(argv[4]);
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int iKmin = atoi(argv[5]);
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int iKmax = atoi(argv[6]);
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DP kBT = atof(argv[7]);
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int DiK = atoi(argv[8]);
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DP ommin = atof(argv[9]);
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DP ommax = atof(argv[10]);
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int Nom = atoi(argv[11]);
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DP width = atof(argv[12]);
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stringstream filenameprefix;
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Data_File_Name (filenameprefix, whichDSF, c_int, L, N, iKmin, iKmax, kBT, 0.0, "");
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string prefix = filenameprefix.str();
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DP normalization = twoPI * L;
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DP denom_sum_K = L;
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Write_K_File (L, iKmin, iKmax);
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Write_Omega_File (Nom, ommin, ommax);
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// We use the scaled width function as default:
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DP sumcheck;
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sumcheck = Smoothen_RAW_into_SF (prefix, iKmin, iKmax, DiK, 0.0, ommin, ommax, Nom, width, normalization, denom_sum_K);
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}
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/*
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else if (argc == 11) { // fixed_iK
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char whichDSF = *argv[1];
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DP c_int = atof(argv[2]);
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DP L = atof(argv[3]);
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int N = atoi(argv[4]);
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int iK_UL = atoi(argv[5]);
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int iKneeded = atoi(argv[6]);
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DP ommin = atof(argv[7]);
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DP ommax = atof(argv[8]);
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int Nom = atoi(argv[9]);
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DP gwidth = atof(argv[10]);
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//bool fixed_iK = true;
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//LiebLin_Bethe_State GroundState (c_int, L, N, iK_UL, 0LL);
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stringstream filenameprefix;
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//Data_File_Name (filenameprefix, whichDSF, fixed_iK, iKneeded, GroundState, GroundState);
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//Data_File_Name (filenameprefix, whichDSF, c_int, L, N, iK_UL, fixed_iK, iKneeded, 0.0);
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Data_File_Name (filenameprefix, whichDSF, c_int, L, N, iK_UL, iKneeded, iKneeded, 0.0);
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string prefix = filenameprefix.str();
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DP normalization = twoPI * L;
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int iKmin = iKneeded;
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int iKmax = iKneeded;
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cout << "Smoothing: sumcheck = " << Smoothen_RAW_into_SF (prefix, iKmin, iKmax, 0.0, ommin, ommax, Nom, gwidth, normalization) << endl;
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}
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*/
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return(0);
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}
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