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- /**********************************************************
-
- This software is part of J.-S. Caux's ABACUS library.
-
- Copyright (c) J.-S. Caux.
-
- -----------------------------------------------------------
-
- File: ABACUS_XXZ_VOA.h
-
- Purpose: Declares classes for XXZ in zero field: Vertex Operator Approach
-
- ***********************************************************/
-
- #ifndef ABACUS_XXZ_VOA_H
- #define ABACUS_XXZ_VOA_H
-
- #include "ABACUS.h"
-
-
- namespace ABACUS {
-
- DP I_xi_integral (DP xi, DP rho, DP req_prec, int max_nr_pts);
-
- /********************* TWO SPINONS ********************/
- DP Szz_XXZ_h0_2spinons (DP k, DP omega, Integral_table Itable);
- DP Szz_XXZ_h0_2spinons (Vect_DP args, Integral_table Itable);
- DP Szz_XXZ_h0_2spinons_alt (Vect_DP args, Integral_table Itable);
- DP Szz_XXZ_h0_2spinons_omega (Vect_DP args, Integral_table Itable);
- DP Szz_XXZ_h0_2spinons_omega_alt (Vect_DP args, Integral_table Itable);
- DP Szz_XXZ_h0_2spinons_intomega (Vect_DP args, Integral_table Itable);
- DP Szz_XXZ_h0_2spinons_intomega_alt (Vect_DP args, Integral_table Itable);
- DP Szz_XXZ_h0_2spinons_check_sumrule (DP Delta, DP req_prec, int max_nr_pts, Integral_table Itable);
- DP Szz_XXZ_h0_2spinons_check_sumrule_alt (DP Delta, DP req_prec, int max_nr_pts, Integral_table Itable);
- DP Fixed_k_sumrule_omega_Szz_XXZ_h0_N (DP Delta, DP k);
- DP GSE_XXZ_h0 (DP Delta, DP req_prec, int max_nr_pts);
- DP Fixed_k_sumrule_omega_Szz_XXZ_h0 (DP Delta, DP k, DP req_prec, int max_nr_pts);
- DP Szz_XXZ_h0_2spinons_check_fixed_k_Szz_sumrule (DP Delta, DP k, DP req_prec, int max_nr_pts, Integral_table Itable);
- DP Szz_XXZ_h0_2spinons_check_fixed_k_Szz_sumrule_alt (DP Delta, DP k, DP req_prec, int max_nr_pts, Integral_table Itable);
-
- //******************************** Functions to produce files similar to ABACUS **********************************
- void Produce_Szz_XXZ_h0_2spinons_file (DP Delta, int N, int Nomega, DP omegamax, Integral_table Itable);
- void Produce_Szz_XXZ_h0_2spinons_fixed_K_file (DP Delta, DP Kover2PI, int Nomega, Integral_table Itable);
-
- } // namespace ABACUS
-
- #endif
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