As always forgot some files...
This commit is contained in:
Bastian M. Wojek
parent
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242
src/external/BMWIntegrator/BMWIntegrator.cpp
vendored
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242
src/external/BMWIntegrator/BMWIntegrator.cpp
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/***************************************************************************
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BMWIntegrator.cpp
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Author: Bastian M. Wojek
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e-mail: bastian.wojek@psi.ch
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$Id$
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***************************************************************************/
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/***************************************************************************
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* Copyright (C) 2009 by Bastian M. Wojek *
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* bastian.wojek@psi.ch *
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* *
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* This program is free software; you can redistribute it and/or modify *
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* it under the terms of the GNU General Public License as published by *
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* the Free Software Foundation; either version 2 of the License, or *
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* (at your option) any later version. *
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* *
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* This program is distributed in the hope that it will be useful, *
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* but WITHOUT ANY WARRANTY; without even the implied warranty of *
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
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* GNU General Public License for more details. *
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* *
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* You should have received a copy of the GNU General Public License *
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* along with this program; if not, write to the *
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* Free Software Foundation, Inc., *
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* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
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***************************************************************************/
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# include "BMWIntegrator.h"
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# include "cuba.h"
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std::vector<double> TDWaveGapIntegralCuhre::fPar;
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double TDWaveGapIntegralCuhre::IntegrateFunc()
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{
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const unsigned int NCOMP(1);
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const double EPSREL (1e-4);
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const double EPSABS (1e-6);
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const unsigned int VERBOSE (0);
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const unsigned int LAST (4);
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const unsigned int MINEVAL (0);
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const unsigned int MAXEVAL (50000);
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const unsigned int KEY (13);
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int nregions, neval, fail;
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double integral[NCOMP], error[NCOMP], prob[NCOMP];
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Cuhre(fNDim, NCOMP, Integrand,
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EPSREL, EPSABS, VERBOSE | LAST, MINEVAL, MAXEVAL,
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KEY,
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&nregions, &neval, &fail, integral, error, prob);
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return integral[0];
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}
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void TDWaveGapIntegralCuhre::Integrand(const int *ndim, const double x[],
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const int *ncomp, double f[]) // x = {E, phi}, fPar = {twokBT, Delta(T), Ec, phic}
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{
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double deltasq(TMath::Power(fPar[1]*TMath::Cos(2.0*x[1]*fPar[3]),2.0));
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f[0] = 1.0/TMath::Power(TMath::CosH(TMath::Sqrt(x[0]*x[0]*fPar[2]*fPar[2]+deltasq)/fPar[0]),2.0);
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return;
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}
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std::vector<double> TAnSWaveGapIntegralCuhre::fPar;
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double TAnSWaveGapIntegralCuhre::IntegrateFunc()
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{
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const unsigned int NCOMP(1);
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const double EPSREL (1e-4);
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const double EPSABS (1e-6);
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const unsigned int VERBOSE (0);
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const unsigned int LAST (4);
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const unsigned int MINEVAL (100);
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const unsigned int MAXEVAL (1000000);
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const unsigned int KEY (13);
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int nregions, neval, fail;
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double integral[NCOMP], error[NCOMP], prob[NCOMP];
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Cuhre(fNDim, NCOMP, Integrand,
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EPSREL, EPSABS, VERBOSE | LAST, MINEVAL, MAXEVAL,
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KEY,
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&nregions, &neval, &fail, integral, error, prob);
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return integral[0];
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}
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void TAnSWaveGapIntegralCuhre::Integrand(const int *ndim, const double x[],
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const int *ncomp, double f[]) // x = {E, phi}, fPar = {twokBT, Delta(T),a, Ec, phic}
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{
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double deltasq(TMath::Power(fPar[1]*(1.0+fPar[2]*TMath::Cos(4.0*x[1]*fPar[4])),2.0));
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f[0] = 1.0/TMath::Power(TMath::CosH(TMath::Sqrt(x[0]*x[0]*fPar[3]*fPar[3]+deltasq)/fPar[0]),2.0);
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return;
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}
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std::vector<double> TAnSWaveGapIntegralDivonne::fPar;
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double TAnSWaveGapIntegralDivonne::IntegrateFunc()
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{
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const unsigned int NCOMP(1);
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const double EPSREL (1e-4);
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const double EPSABS (1e-6);
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const unsigned int VERBOSE (0);
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const unsigned int MINEVAL (1000);
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const unsigned int MAXEVAL (1000000);
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const unsigned int KEY1 (47);
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const unsigned int KEY2 (1);
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const unsigned int KEY3 (1);
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const unsigned int MAXPASS (5);
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const double BORDER (0.);
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const double MAXCHISQ (10.);
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const double MINDEVIATION (.25);
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const unsigned int NGIVEN (0);
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const unsigned int LDXGIVEN (fNDim);
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const unsigned int NEXTRA (0);
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int nregions, neval, fail;
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double integral[NCOMP], error[NCOMP], prob[NCOMP];
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Divonne(fNDim, NCOMP, Integrand,
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EPSREL, EPSABS, VERBOSE, MINEVAL, MAXEVAL,
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KEY1, KEY2, KEY3, MAXPASS, BORDER, MAXCHISQ, MINDEVIATION,
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NGIVEN, LDXGIVEN, NULL, NEXTRA, NULL,
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&nregions, &neval, &fail, integral, error, prob);
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return integral[0];
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}
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void TAnSWaveGapIntegralDivonne::Integrand(const int *ndim, const double x[],
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const int *ncomp, double f[]) // x = {E, phi}, fPar = {twokBT, Delta(T),a, Ec, phic}
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{
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double deltasq(TMath::Power(fPar[1]*(1.0+fPar[2]*TMath::Cos(4.0*x[1]*fPar[4])),2.0));
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f[0] = 1.0/TMath::Power(TMath::CosH(TMath::Sqrt(x[0]*x[0]*fPar[3]*fPar[3]+deltasq)/fPar[0]),2.0);
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return;
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}
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std::vector<double> TAnSWaveGapIntegralSuave::fPar;
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double TAnSWaveGapIntegralSuave::IntegrateFunc()
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{
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const unsigned int NCOMP(1);
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const double EPSREL (1e-4);
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const double EPSABS (1e-6);
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const unsigned int VERBOSE (0);
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const unsigned int LAST (4);
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const unsigned int MINEVAL (1000);
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const unsigned int MAXEVAL (1000000);
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const unsigned int NNEW (1000);
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const double FLATNESS (25.);
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int nregions, neval, fail;
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double integral[NCOMP], error[NCOMP], prob[NCOMP];
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Suave(fNDim, NCOMP, Integrand,
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EPSREL, EPSABS, VERBOSE | LAST, MINEVAL, MAXEVAL,
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NNEW, FLATNESS,
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&nregions, &neval, &fail, integral, error, prob);
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return integral[0];
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}
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void TAnSWaveGapIntegralSuave::Integrand(const int *ndim, const double x[],
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const int *ncomp, double f[]) // x = {E, phi}, fPar = {twokBT, Delta(T),a, Ec, phic}
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{
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double deltasq(TMath::Power(fPar[1]*(1.0+fPar[2]*TMath::Cos(4.0*x[1]*fPar[4])),2.0));
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f[0] = 1.0/TMath::Power(TMath::CosH(TMath::Sqrt(x[0]*x[0]*fPar[3]*fPar[3]+deltasq)/fPar[0]),2.0);
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return;
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}
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std::vector<double> TNonMonDWave1GapIntegralCuhre::fPar;
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double TNonMonDWave1GapIntegralCuhre::IntegrateFunc()
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{
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const unsigned int NCOMP(1);
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const double EPSREL (1e-4);
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const double EPSABS (1e-6);
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const unsigned int VERBOSE (0);
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const unsigned int LAST (4);
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const unsigned int MINEVAL (100);
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const unsigned int MAXEVAL (1000000);
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const unsigned int KEY (13);
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int nregions, neval, fail;
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double integral[NCOMP], error[NCOMP], prob[NCOMP];
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Cuhre(fNDim, NCOMP, Integrand,
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EPSREL, EPSABS, VERBOSE | LAST, MINEVAL, MAXEVAL,
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KEY,
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&nregions, &neval, &fail, integral, error, prob);
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return integral[0];
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}
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void TNonMonDWave1GapIntegralCuhre::Integrand(const int *ndim, const double x[],
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const int *ncomp, double f[]) // x = {E, phi}, fPar = {twokBT, Delta(T),a, Ec, phic}
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{
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double deltasq(TMath::Power(fPar[1]*(fPar[2]*TMath::Cos(2.0*x[1]*fPar[4])+(1.0-fPar[2])*TMath::Cos(6.0*x[1]*fPar[4])),2.0));
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f[0] = 1.0/TMath::Power(TMath::CosH(TMath::Sqrt(x[0]*x[0]*fPar[3]*fPar[3]+deltasq)/fPar[0]),2.0);
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return;
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}
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std::vector<double> TNonMonDWave2GapIntegralCuhre::fPar;
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double TNonMonDWave2GapIntegralCuhre::IntegrateFunc()
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{
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const unsigned int NCOMP(1);
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const double EPSREL (1e-4);
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const double EPSABS (1e-6);
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const unsigned int VERBOSE (0);
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const unsigned int LAST (4);
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const unsigned int MINEVAL (100);
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const unsigned int MAXEVAL (1000000);
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const unsigned int KEY (13);
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int nregions, neval, fail;
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double integral[NCOMP], error[NCOMP], prob[NCOMP];
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Cuhre(fNDim, NCOMP, Integrand,
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EPSREL, EPSABS, VERBOSE | LAST, MINEVAL, MAXEVAL,
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KEY,
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&nregions, &neval, &fail, integral, error, prob);
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return integral[0];
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}
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void TNonMonDWave2GapIntegralCuhre::Integrand(const int *ndim, const double x[],
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const int *ncomp, double f[]) // x = {E, phi}, fPar = {twokBT, Delta(T),a, Ec, phic}
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{
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double deltasq(4.0*fPar[2]/27.0*TMath::Power(fPar[1]*TMath::Cos(2.0*x[1]*fPar[4]), 2.0) \
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/ TMath::Power(1.0 + fPar[2]*TMath::Cos(2.0*x[1]*fPar[4])*TMath::Cos(2.0*x[1]*fPar[4]), 3.0));
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f[0] = 1.0/TMath::Power(TMath::CosH(TMath::Sqrt(x[0]*x[0]*fPar[3]*fPar[3]+deltasq)/fPar[0]),2.0);
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return;
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}
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329
src/external/BMWIntegrator/BMWIntegrator.h
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329
src/external/BMWIntegrator/BMWIntegrator.h
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@ -0,0 +1,329 @@
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/***************************************************************************
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BMWIntegrator.h
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Author: Bastian M. Wojek
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e-mail: bastian.wojek@psi.ch
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$Id:
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***************************************************************************/
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/***************************************************************************
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* Copyright (C) 2009 by Bastian M. Wojek *
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* bastian.wojek@psi.ch *
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* *
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* This program is free software; you can redistribute it and/or modify *
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* it under the terms of the GNU General Public License as published by *
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* the Free Software Foundation; either version 2 of the License, or *
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* (at your option) any later version. *
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* *
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* This program is distributed in the hope that it will be useful, *
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||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of *
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
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* GNU General Public License for more details. *
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* *
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* You should have received a copy of the GNU General Public License *
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* along with this program; if not, write to the *
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* Free Software Foundation, Inc., *
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* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
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***************************************************************************/
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#ifndef _BMWIntegrator_H_
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#define _BMWIntegrator_H_
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#include "Math/GSLIntegrator.h"
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#include "Math/GSLMCIntegrator.h"
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#include "TMath.h"
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#include <vector>
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using namespace std;
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// 1D Integrator base class - the function to be integrated have to be implemented in a derived class
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class TIntegrator {
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public:
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TIntegrator();
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virtual ~TIntegrator();
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void SetParameters(const std::vector<double> &par) const { fPar=par; }
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virtual double FuncAtX(double) const = 0;
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double IntegrateFunc(double, double);
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protected:
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mutable vector<double> fPar;
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private:
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static double FuncAtXgsl(double, void *);
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ROOT::Math::GSLIntegrator *fIntegrator;
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mutable double (*fFunc)(double, void *);
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};
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inline TIntegrator::TIntegrator() : fFunc(0) {
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ROOT::Math::GSLIntegrator *integrator = new ROOT::Math::GSLIntegrator(ROOT::Math::Integration::kADAPTIVE,ROOT::Math::Integration::kGAUSS31);
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fIntegrator = integrator;
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integrator = 0;
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delete integrator;
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}
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inline TIntegrator::~TIntegrator(){
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delete fIntegrator;
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fIntegrator=0;
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fFunc=0;
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}
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inline double TIntegrator::FuncAtXgsl(double x, void *obj)
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{
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return ((TIntegrator*)obj)->FuncAtX(x);
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}
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inline double TIntegrator::IntegrateFunc(double x1, double x2)
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{
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fFunc = &TIntegrator::FuncAtXgsl;
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return fIntegrator->Integral(fFunc, (this), x1, x2);
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}
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// Multi dimensional GSL Monte Carlo Integrations
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class TMCIntegrator {
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public:
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TMCIntegrator();
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virtual ~TMCIntegrator();
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void SetParameters(const std::vector<double> &par) const { fPar=par; }
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virtual double FuncAtX(double *) const = 0;
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double IntegrateFunc(unsigned int, double *, double *);
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protected:
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mutable vector<double> fPar;
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private:
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static double FuncAtXgsl(double *, unsigned int, void *);
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ROOT::Math::GSLMCIntegrator *fMCIntegrator;
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mutable double (*fFunc)(double *, unsigned int, void *);
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};
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inline TMCIntegrator::TMCIntegrator() : fFunc(0) {
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ROOT::Math::GSLMCIntegrator *integrator = new ROOT::Math::GSLMCIntegrator(ROOT::Math::MCIntegration::kMISER, 1.E-6, 1.E-4, 500000);
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fMCIntegrator = integrator;
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integrator = 0;
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delete integrator;
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}
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inline TMCIntegrator::~TMCIntegrator(){
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delete fMCIntegrator;
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fMCIntegrator=0;
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fFunc=0;
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}
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inline double TMCIntegrator::FuncAtXgsl(double *x, unsigned int dim, void *obj)
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{
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return ((TMCIntegrator*)obj)->FuncAtX(x);
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}
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inline double TMCIntegrator::IntegrateFunc(unsigned int dim, double *x1, double *x2)
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{
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fFunc = &TMCIntegrator::FuncAtXgsl;
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return fMCIntegrator->Integral(fFunc, dim, x1, x2, (this));
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}
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// Multidimensional Integrator class for a d-wave gap integral using the Cuhre algorithm
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class TDWaveGapIntegralCuhre {
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public:
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TDWaveGapIntegralCuhre() : fNDim(2) {}
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~TDWaveGapIntegralCuhre() { fPar.clear(); }
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void SetParameters(const std::vector<double> &par) { fPar=par; }
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static void Integrand(const int*, const double[], const int*, double[]);
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double IntegrateFunc();
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protected:
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static vector<double> fPar;
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unsigned int fNDim;
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};
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class TAnSWaveGapIntegralCuhre {
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public:
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TAnSWaveGapIntegralCuhre() : fNDim(2) {}
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~TAnSWaveGapIntegralCuhre() { fPar.clear(); }
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void SetParameters(const std::vector<double> &par) { fPar=par; }
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static void Integrand(const int*, const double[], const int*, double[]);
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double IntegrateFunc();
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protected:
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static vector<double> fPar;
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unsigned int fNDim;
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};
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class TAnSWaveGapIntegralDivonne {
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public:
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TAnSWaveGapIntegralDivonne() : fNDim(2) {}
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~TAnSWaveGapIntegralDivonne() { fPar.clear(); }
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void SetParameters(const std::vector<double> &par) { fPar=par; }
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static void Integrand(const int*, const double[], const int*, double[]);
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double IntegrateFunc();
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protected:
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static vector<double> fPar;
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unsigned int fNDim;
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};
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class TAnSWaveGapIntegralSuave {
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public:
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TAnSWaveGapIntegralSuave() : fNDim(2) {}
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~TAnSWaveGapIntegralSuave() { fPar.clear(); }
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void SetParameters(const std::vector<double> &par) { fPar=par; }
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static void Integrand(const int*, const double[], const int*, double[]);
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double IntegrateFunc();
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protected:
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static vector<double> fPar;
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unsigned int fNDim;
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};
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class TNonMonDWave1GapIntegralCuhre {
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public:
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TNonMonDWave1GapIntegralCuhre() : fNDim(2) {}
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~TNonMonDWave1GapIntegralCuhre() { fPar.clear(); }
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void SetParameters(const std::vector<double> &par) { fPar=par; }
|
||||
static void Integrand(const int*, const double[], const int*, double[]);
|
||||
double IntegrateFunc();
|
||||
|
||||
protected:
|
||||
static vector<double> fPar;
|
||||
unsigned int fNDim;
|
||||
|
||||
};
|
||||
|
||||
class TNonMonDWave2GapIntegralCuhre {
|
||||
public:
|
||||
TNonMonDWave2GapIntegralCuhre() : fNDim(2) {}
|
||||
~TNonMonDWave2GapIntegralCuhre() { fPar.clear(); }
|
||||
void SetParameters(const std::vector<double> &par) { fPar=par; }
|
||||
static void Integrand(const int*, const double[], const int*, double[]);
|
||||
double IntegrateFunc();
|
||||
|
||||
protected:
|
||||
static vector<double> fPar;
|
||||
unsigned int fNDim;
|
||||
|
||||
};
|
||||
|
||||
// To be integrated: x*y dx dy
|
||||
|
||||
class T2DTest : public TMCIntegrator {
|
||||
public:
|
||||
T2DTest() {}
|
||||
~T2DTest() {}
|
||||
double FuncAtX(double *) const;
|
||||
};
|
||||
|
||||
inline double T2DTest::FuncAtX(double *x) const
|
||||
{
|
||||
return x[0]*x[1];
|
||||
}
|
||||
|
||||
// To be integrated: d wave gap integral
|
||||
|
||||
class TDWaveGapIntegral : public TMCIntegrator {
|
||||
public:
|
||||
TDWaveGapIntegral() {}
|
||||
~TDWaveGapIntegral() {}
|
||||
double FuncAtX(double *) const;
|
||||
};
|
||||
|
||||
inline double TDWaveGapIntegral::FuncAtX(double *x) const // x = {E, phi}, fPar = {T, Delta(T)}
|
||||
{
|
||||
double twokt(2.0*0.08617384436*fPar[0]); // kB in meV/K
|
||||
double deltasq(TMath::Power(fPar[1]*TMath::Cos(2.0*x[1]),2.0));
|
||||
return -1.0/(2.0*twokt*TMath::CosH(TMath::Sqrt(x[0]*x[0]+deltasq)/twokt)*TMath::CosH(TMath::Sqrt(x[0]*x[0]+deltasq)/twokt));
|
||||
}
|
||||
|
||||
// To be integrated: anisotropic s wave gap integral
|
||||
|
||||
class TAnSWaveGapIntegral : public TMCIntegrator {
|
||||
public:
|
||||
TAnSWaveGapIntegral() {}
|
||||
~TAnSWaveGapIntegral() {}
|
||||
double FuncAtX(double *) const;
|
||||
};
|
||||
|
||||
inline double TAnSWaveGapIntegral::FuncAtX(double *x) const // x = {E, phi}, fPar = {T, Delta(T), a}
|
||||
{
|
||||
double twokt(2.0*0.08617384436*fPar[0]); // kB in meV/K
|
||||
double deltasq(TMath::Power(fPar[1]*(1.0+fPar[2]*TMath::Cos(4.0*x[1])),2.0));
|
||||
return -1.0/(2.0*twokt*TMath::CosH(TMath::Sqrt(x[0]*x[0]+deltasq)/twokt)*TMath::CosH(TMath::Sqrt(x[0]*x[0]+deltasq)/twokt));
|
||||
}
|
||||
|
||||
// To be integrated: Bessel function times Exponential
|
||||
|
||||
class TIntBesselJ0Exp : public TIntegrator {
|
||||
public:
|
||||
TIntBesselJ0Exp() {}
|
||||
~TIntBesselJ0Exp() {}
|
||||
double FuncAtX(double) const;
|
||||
};
|
||||
|
||||
inline double TIntBesselJ0Exp::FuncAtX(double x) const
|
||||
{
|
||||
double w0t(TMath::TwoPi()*fPar[0]*x);
|
||||
double j0;
|
||||
if (fabs(w0t) < 0.001) { // check zero time limits of the spherical bessel functions j0(x) and j1(x)
|
||||
j0 = 1.0;
|
||||
} else {
|
||||
j0 = TMath::Sin(w0t)/w0t;
|
||||
}
|
||||
return j0 * TMath::Exp(-fPar[1]*x);
|
||||
}
|
||||
|
||||
// To be integrated: Sine times Gaussian
|
||||
|
||||
class TIntSinGss : public TIntegrator {
|
||||
public:
|
||||
TIntSinGss() {}
|
||||
~TIntSinGss() {}
|
||||
double FuncAtX(double) const;
|
||||
};
|
||||
|
||||
inline double TIntSinGss::FuncAtX(double x) const
|
||||
{
|
||||
return TMath::Sin(TMath::TwoPi()*fPar[0]*x) * TMath::Exp(-0.5*fPar[1]*fPar[1]*x*x);
|
||||
}
|
||||
|
||||
// To be integrated: DeRenzi Spin Glass Interpolation Integrand
|
||||
|
||||
class TIntSGInterpolation : public TIntegrator {
|
||||
public:
|
||||
TIntSGInterpolation() {}
|
||||
~TIntSGInterpolation() {}
|
||||
double FuncAtX(double) const;
|
||||
};
|
||||
|
||||
inline double TIntSGInterpolation::FuncAtX(double x) const
|
||||
{
|
||||
// Parameters: nu_L [MHz], a [1/us], lambda [1/us], beta [1], t [us]
|
||||
double wt(TMath::TwoPi()*fPar[0]*x);
|
||||
double expo(0.5*fPar[1]*fPar[1]*x*x/fPar[3]+fPar[2]*fPar[4]);
|
||||
return (wt*TMath::Cos(wt)-TMath::Sin(wt))/(wt*wt)*TMath::Exp(-TMath::Power(expo,fPar[3]))/TMath::Power(expo,(1.0-fPar[3]));
|
||||
}
|
||||
|
||||
|
||||
// To be integrated: df/dE * E / sqrt(E^2 - Delta^2)
|
||||
|
||||
class TGapIntegral : public TIntegrator {
|
||||
public:
|
||||
TGapIntegral() {}
|
||||
~TGapIntegral() {}
|
||||
double FuncAtX(double) const; // variable: E
|
||||
|
||||
};
|
||||
|
||||
inline double TGapIntegral::FuncAtX(double e) const
|
||||
{
|
||||
return 1.0/(TMath::Power(TMath::CosH(TMath::Sqrt(e*e+fPar[1]*fPar[1])/fPar[0]),2.0));
|
||||
}
|
||||
|
||||
#endif //_TIntegrator_H_
|
||||
110
src/external/libLFRelaxation/TIntegrator.h
vendored
110
src/external/libLFRelaxation/TIntegrator.h
vendored
@ -1,110 +0,0 @@
|
||||
/***************************************************************************
|
||||
|
||||
TIntegrator.h
|
||||
|
||||
Author: Bastian M. Wojek
|
||||
e-mail: bastian.wojek@psi.ch
|
||||
|
||||
2008/12/24
|
||||
|
||||
***************************************************************************/
|
||||
|
||||
#ifndef _TIntegrator_H_
|
||||
#define _TIntegrator_H_
|
||||
|
||||
#include "Math/GSLIntegrator.h"
|
||||
#include "TMath.h"
|
||||
|
||||
#include <vector>
|
||||
|
||||
using namespace std;
|
||||
|
||||
// Integrator base class - the function to be integrated have to be implemented in a derived class
|
||||
|
||||
class TIntegrator {
|
||||
public:
|
||||
TIntegrator();
|
||||
virtual ~TIntegrator();
|
||||
void SetParameters(const std::vector<double> &par) const { fPar=par; }
|
||||
virtual double FuncAtX(double) const = 0;
|
||||
double IntegrateFunc(double, double);
|
||||
|
||||
protected:
|
||||
mutable vector<double> fPar;
|
||||
|
||||
private:
|
||||
static double FuncAtXgsl(double, void *);
|
||||
ROOT::Math::GSLIntegrator *fIntegrator;
|
||||
mutable double (*fFunc)(double, void *);
|
||||
};
|
||||
|
||||
inline TIntegrator::TIntegrator() : fFunc(0) {
|
||||
ROOT::Math::GSLIntegrator *integrator = new ROOT::Math::GSLIntegrator(ROOT::Math::Integration::kADAPTIVE,ROOT::Math::Integration::kGAUSS31);
|
||||
fIntegrator = integrator;
|
||||
integrator = 0;
|
||||
delete integrator;
|
||||
}
|
||||
|
||||
inline TIntegrator::~TIntegrator(){
|
||||
delete fIntegrator;
|
||||
fIntegrator=0;
|
||||
fFunc=0;
|
||||
}
|
||||
|
||||
inline double TIntegrator::FuncAtXgsl(double x, void *obj)
|
||||
{
|
||||
return ((TIntegrator*)obj)->FuncAtX(x);
|
||||
}
|
||||
|
||||
inline double TIntegrator::IntegrateFunc(double x1, double x2)
|
||||
{
|
||||
fFunc = &TIntegrator::FuncAtXgsl;
|
||||
return fIntegrator->Integral(fFunc, (this), x1, x2);
|
||||
}
|
||||
|
||||
// To be integrated: Bessel function times Exponential
|
||||
|
||||
class TIntBesselJ0Exp : public TIntegrator {
|
||||
public:
|
||||
TIntBesselJ0Exp() {}
|
||||
~TIntBesselJ0Exp() {}
|
||||
double FuncAtX(double) const;
|
||||
};
|
||||
|
||||
inline double TIntBesselJ0Exp::FuncAtX(double x) const
|
||||
{
|
||||
return TMath::BesselJ0(TMath::TwoPi()*fPar[0]*x) * TMath::Exp(-fPar[1]*x);
|
||||
}
|
||||
|
||||
// To be integrated: Sine times Gaussian
|
||||
|
||||
class TIntSinGss : public TIntegrator {
|
||||
public:
|
||||
TIntSinGss() {}
|
||||
~TIntSinGss() {}
|
||||
double FuncAtX(double) const;
|
||||
};
|
||||
|
||||
inline double TIntSinGss::FuncAtX(double x) const
|
||||
{
|
||||
return TMath::Sin(TMath::TwoPi()*fPar[0]*x) * TMath::Exp(-0.5*fPar[1]*fPar[1]*x*x);
|
||||
}
|
||||
|
||||
// To be integrated: df/dE * E / sqrt(E^2+ Delta^2)
|
||||
|
||||
class TGapIntegral : public TIntegrator {
|
||||
public:
|
||||
TGapIntegral() {}
|
||||
~TGapIntegral() {}
|
||||
double FuncAtX(double) const; // parameter: E
|
||||
|
||||
};
|
||||
|
||||
inline double TGapIntegral::FuncAtX(double e) const
|
||||
{
|
||||
double kt(0.08617384436*fPar[0]); // kB in meV/K
|
||||
double expekt(TMath::Exp(e/kt));
|
||||
return -expekt*e/(kt*(1.0+expekt)*TMath::Sqrt(e*e+fPar[1]*fPar[1]));
|
||||
}
|
||||
|
||||
#endif //_TIntegrator_H_
|
||||
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Reference in New Issue
Block a user