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derivative_nondegenerate.c
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derivative_nondegenerate.c
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/* $Id$ */
#ifdef HAVE_CONFIG_H
# include<config.h>
#endif
#include <stdlib.h>
#include <stdio.h>
#include <math.h>
#include <time.h>
#include "global.h"
#include "su3.h"
#include "su3adj.h"
#include "linalg_eo.h"
#include "start.h"
#include "linsolve.h"
#include "deriv_Sb.h"
#include "tm_operators.h"
#include "chebyshev_polynomial.h"
#include "Nondegenerate_Matrix.h"
#include "Hopping_Matrix.h"
#include "phmc.h"
#include "derivative_nondegenerate.h"
extern int phmc_exact_poly;
/********************************************
*
* Here \delta S_b is computed
*
********************************************/
void derivative_nondegenerate() {
int i, mu, j, k;
/* Recall: The GAMMA_5 left of delta M_eo is done in deriv_Sb !!! */
/* Re-initialize df0 */
for(i=0;i<(VOLUME+RAND);i++) {
for(mu=0;mu<4;mu++){
_zero_su3adj(df0[i][mu]);
}
}
if (g_epsbar!=0.0 || phmc_exact_poly==0){
/* Here comes the definitions for the chi_j fields */
/* from j=0 (chi_0 = phi) ..... to j = n-1 */
for(k = 1; k < (phmc_dop_n_cheby-1); k++) {
Q_tau1_min_cconst_ND(g_chi_up_spinor_field[k], g_chi_dn_spinor_field[k],
g_chi_up_spinor_field[k-1], g_chi_dn_spinor_field[k-1],
phmc_root[k-1]);
}
/* Here comes the remaining fields chi_k ; k=n,...,2n-1 */
/*They are evaluated step-by-step overwriting the same field (phmc_dop_n_cheby)*/
assign(g_chi_up_spinor_field[phmc_dop_n_cheby], g_chi_up_spinor_field[phmc_dop_n_cheby-2], VOLUME/2);
assign(g_chi_dn_spinor_field[phmc_dop_n_cheby], g_chi_dn_spinor_field[phmc_dop_n_cheby-2], VOLUME/2);
for(j=(phmc_dop_n_cheby-1); j>=1; j--) {
assign(g_chi_up_spinor_field[phmc_dop_n_cheby-1], g_chi_up_spinor_field[phmc_dop_n_cheby], VOLUME/2);
assign(g_chi_dn_spinor_field[phmc_dop_n_cheby-1], g_chi_dn_spinor_field[phmc_dop_n_cheby], VOLUME/2);
Q_tau1_min_cconst_ND(g_chi_up_spinor_field[phmc_dop_n_cheby], g_chi_dn_spinor_field[phmc_dop_n_cheby],
g_chi_up_spinor_field[phmc_dop_n_cheby-1], g_chi_dn_spinor_field[phmc_dop_n_cheby-1],
phmc_root[2*phmc_dop_n_cheby-3-j]);
/* assign(g_spinor_field[DUM_DERI+4], g_chi_up_spinor_field[phmc_dop_n_cheby], VOLUME/2); */
/* assign(g_spinor_field[DUM_DERI+5], g_chi_dn_spinor_field[phmc_dop_n_cheby], VOLUME/2); */
/* assign(g_spinor_field[DUM_DERI+2], g_chi_up_spinor_field[j-1], VOLUME/2); */
/* assign(g_spinor_field[DUM_DERI+3], g_chi_dn_spinor_field[j-1], VOLUME/2); */
/* Get the even parts of the (j-1)th chi_spinors */
H_eo_ND(g_spinor_field[DUM_DERI], g_spinor_field[DUM_DERI+1],
g_chi_up_spinor_field[j-1], g_chi_dn_spinor_field[j-1], EO);
/* \delta M_eo sandwitched by chi[j-1]_e^\dagger and chi[2N-j]_o */
deriv_Sb(EO, g_spinor_field[DUM_DERI], g_chi_up_spinor_field[phmc_dop_n_cheby]); /* UP */
deriv_Sb(EO, g_spinor_field[DUM_DERI+1], g_chi_dn_spinor_field[phmc_dop_n_cheby]); /* DN */
/* Get the even parts of the (2N-j)-th chi_spinors */
H_eo_ND(g_spinor_field[DUM_DERI], g_spinor_field[DUM_DERI+1],
g_chi_up_spinor_field[phmc_dop_n_cheby], g_chi_dn_spinor_field[phmc_dop_n_cheby], EO);
/* \delta M_oe sandwitched by chi[j-1]_o^\dagger and chi[2N-j]_e */
deriv_Sb(OE, g_chi_up_spinor_field[j-1], g_spinor_field[DUM_DERI]);
deriv_Sb(OE, g_chi_dn_spinor_field[j-1], g_spinor_field[DUM_DERI+1]);
}
} else if(g_epsbar==0.0){
/* Here comes the definitions for the chi_j fields */
/* from j=0 (chi_0 = phi) ..... to j = n-1 */
for(k = 1; k < (phmc_dop_n_cheby-1); k++) {
Qtm_pm_min_cconst_nrm(g_chi_up_spinor_field[k],
g_chi_up_spinor_field[k-1],
phmc_root[k-1]);
}
assign(g_chi_up_spinor_field[phmc_dop_n_cheby],
g_chi_up_spinor_field[phmc_dop_n_cheby-2], VOLUME/2);
for(j=(phmc_dop_n_cheby-1); j>=1; j--) {
assign(g_chi_up_spinor_field[phmc_dop_n_cheby-1],
g_chi_up_spinor_field[phmc_dop_n_cheby], VOLUME/2);
Qtm_pm_min_cconst_nrm(g_chi_up_spinor_field[phmc_dop_n_cheby],
g_chi_up_spinor_field[phmc_dop_n_cheby-1],
phmc_root[2*phmc_dop_n_cheby-3-j]);
Qtm_minus_psi(g_spinor_field[DUM_DERI+3],g_chi_up_spinor_field[j-1]);
H_eo_tm_inv_psi(g_spinor_field[DUM_DERI+2], g_chi_up_spinor_field[phmc_dop_n_cheby], EO, -1.);
deriv_Sb(OE, g_spinor_field[DUM_DERI+3], g_spinor_field[DUM_DERI+2]);
H_eo_tm_inv_psi(g_spinor_field[DUM_DERI+2], g_spinor_field[DUM_DERI+3], EO, 1.);
deriv_Sb(EO, g_spinor_field[DUM_DERI+2], g_chi_up_spinor_field[phmc_dop_n_cheby]);
Qtm_minus_psi(g_spinor_field[DUM_DERI+3],g_chi_up_spinor_field[phmc_dop_n_cheby]);
H_eo_tm_inv_psi(g_spinor_field[DUM_DERI+2],g_spinor_field[DUM_DERI+3], EO, +1.);
deriv_Sb(OE, g_chi_up_spinor_field[j-1] , g_spinor_field[DUM_DERI+2]);
H_eo_tm_inv_psi(g_spinor_field[DUM_DERI+2], g_chi_up_spinor_field[j-1], EO, -1.);
deriv_Sb(EO, g_spinor_field[DUM_DERI+2], g_spinor_field[DUM_DERI+3]);
}
}
/*
Normalisation by the largest EW is done in update_fermion_momenta
C.U. this is something worth to be changed...
Compute force once for every monomial, can we have them on different time-scales?
*/
}