From e333d9448b383cd3977f3919b6a1283a1e5e40e8 Mon Sep 17 00:00:00 2001
From: hackbard <hackbard>
Date: Mon, 5 Mar 2007 10:12:51 +0000
Subject: [PATCH] added potential header files

---
 potentials/harmonic_oscillator.h | 20 ++++++++
 potentials/lennard_jones.h       | 22 ++++++++
 potentials/tersoff.h             | 87 ++++++++++++++++++++++++++++++++
 3 files changed, 129 insertions(+)
 create mode 100644 potentials/harmonic_oscillator.h
 create mode 100644 potentials/lennard_jones.h
 create mode 100644 potentials/tersoff.h

diff --git a/potentials/harmonic_oscillator.h b/potentials/harmonic_oscillator.h
new file mode 100644
index 0000000..c9c9891
--- /dev/null
+++ b/potentials/harmonic_oscillator.h
@@ -0,0 +1,20 @@
+/*
+ * harmonic_oscillator.h - harmonic oscillator potential header file
+ *
+ * author: Frank Zirkelbach <frank.zirkelbach@physik.uni-augsburg.de>
+ *
+ */
+
+#ifndef HARMONIC_OSCILLATOR_H
+#define HARMONIC_OSCILLATOR_H
+
+/* types */
+typedef struct s_ho_params {
+	double spring_constant;
+	double equilibrium_distance;
+} t_ho_params;
+
+/* function prototype */
+int harmonic_oscillator(t_moldyn *moldyn,t_atom *ai,t_atom *aj,u8 bc);
+
+#endif
diff --git a/potentials/lennard_jones.h b/potentials/lennard_jones.h
new file mode 100644
index 0000000..617658b
--- /dev/null
+++ b/potentials/lennard_jones.h
@@ -0,0 +1,22 @@
+/*
+ * lennard_jones.h - lennard jones potential header file
+ *
+ * author: Frank Zirkelbach <frank.zirkelbach@physik.uni-augsburg.de>
+ *
+ */
+
+#ifndef LENNARD_JONES_H
+#define LENNARD_JONES_H
+
+/* types */
+typedef struct s_lj_params {
+	double sigma6;
+	double sigma12;
+	double epsilon4;
+	double uc;
+} t_lj_params;
+
+/* function prototype */
+int lennard_jones(t_moldyn *moldyn,t_atom *ai,t_atom *aj,u8 bc);
+
+#endif
diff --git a/potentials/tersoff.h b/potentials/tersoff.h
new file mode 100644
index 0000000..a04ed02
--- /dev/null
+++ b/potentials/tersoff.h
@@ -0,0 +1,87 @@
+/*
+ * tersoff.h - tersoff potential header file
+ *
+ * author: Frank Zirkelbach <frank.zirkelbach@physik.uni-augsburg.de>
+ *
+ */
+
+#ifndef TERSOFF_H
+#define TERSOFF_H
+
+/* tersoff exchange type */
+typedef struct s_tersoff_echange {
+	double f_c,df_c;
+	double f_a,df_a;
+
+	t_3dvec dist_ij;
+	double d_ij2;
+	double d_ij;
+
+	double chi;
+
+	double *beta_i;
+	double *beta_j;
+	double *n_i;
+	double *n_j;
+	double *c_i;
+	double *c_j;
+	double *d_i;
+	double *d_j;
+	double *h_i;
+	double *h_j;
+
+	double ci2;
+	double cj2;
+	double di2;
+	double dj2;
+	double ci2di2;
+	double cj2dj2;
+	double betaini;
+	double betajnj;
+
+	u8 run3bp;
+	u8 run2bp_post;
+	u8 d_ij_between_rs;
+
+	double zeta_ij;
+	double zeta_ji;
+	t_3dvec dzeta_ij;
+	t_3dvec dzeta_ji;
+} t_tersoff_exchange;
+
+/* tersoff mult (2!) potential parameters */
+typedef struct s_tersoff_mult_params {
+	double S[2];		/* tersoff cutoff radii */
+	double S2[2];		/* tersoff cutoff radii squared */
+	double R[2];		/* tersoff cutoff radii */
+	double Smixed;		/* mixed S radius */
+	double S2mixed;		/* mixed S radius squared */
+	double Rmixed;		/* mixed R radius */
+	double A[2];		/* factor of tersoff attractive part */
+	double B[2];		/* factor of tersoff repulsive part */
+	double Amixed;		/* mixed A factor */
+	double Bmixed;		/* mixed B factor */
+	double lambda[2];	/* tersoff lambda */
+	double lambda_m;	/* mixed lambda */
+	double mu[2];		/* tersoff mu */
+	double mu_m;		/* mixed mu */
+
+	double chi;
+
+	double beta[2];
+	double n[2];
+	double c[2];
+	double d[2];
+	double h[2];
+
+	t_tersoff_exchange exchange;	/* exchange between 2bp and 3bp calc */
+} t_tersoff_mult_params;
+
+/* function prototypes */
+int tersoff_mult_complete_params(t_tersoff_mult_params *p);
+int tersoff_mult_1bp(t_moldyn *moldyn,t_atom *ai);
+int tersoff_mult_2bp(t_moldyn *moldyn,t_atom *ai,t_atom *aj,u8 bc);
+int tersoff_mult_post_2bp(t_moldyn *moldyn,t_atom *ai,t_atom *aj,u8 bc);
+int tersoff_mult_3bp(t_moldyn *moldyn,t_atom *ai,t_atom *aj,t_atom *ak,u8 bc);
+
+#endif
-- 
2.20.1