bug fix: make initial E-field vector noise velocity independent

1 files changed, 30 insertions, 21 deletions

diff --git a/MOR_5_levels_with_doppler_and_propagation/Nlevels_with_MOR.xmds b/MOR_5_levels_with_doppler_and_propagation/Nlevels_with_MOR.xmds
index 86aa117..a55cf6b 100644
--- a/MOR_5_levels_with_doppler_and_propagation/Nlevels_with_MOR.xmds
+++ b/MOR_5_levels_with_doppler_and_propagation/Nlevels_with_MOR.xmds
@@ -180,28 +180,37 @@
 		<components>EdL EdR EpL EpR</components>
 		<initialisation>
 			<![CDATA[
-			// Initial (at starting 'z' position) electromagnetic field does not depend on detuning
-			// as well as time
 
-			// constant input
-			/*
-			EdL=EdLo;
-			EdR=EdRo;
-			EpL=EpLo;
-			EpR=EpRo;
-			*/
-
-			// amplitude noise modulated
-			double r1 = 2.0*(1.0*rand()/RAND_MAX) - 1.0; // random number -1 .. +1
-			double r2 = 2.0*(1.0*rand()/RAND_MAX) - 1.0; // random number -1 .. +1
-			double r3 = 2.0*(1.0*rand()/RAND_MAX) - 1.0; // random number -1 .. +1
-			double common_ampl_noise_frac = 1+commAmplNoise*r1;
-			double one_phot_noise_frac = onePhotonPhaseNoise*r2;
-			double two_phot_noise_frac = twoPhotonPhaseNoise*r3;
-			EdL=EdLo * common_ampl_noise_frac * exp(i*one_phot_noise_frac);
-			EdR=EdRo * common_ampl_noise_frac * exp(i*one_phot_noise_frac);
-			EpL=EpLo * common_ampl_noise_frac * exp(i*one_phot_noise_frac) * exp(i*two_phot_noise_frac);
-			EpR=EpRo * common_ampl_noise_frac * exp(i*one_phot_noise_frac) * exp(i*two_phot_noise_frac);
+			// amplitude and phase noise modulation to the E-fields
+      if ( _index_v == 0 ) {
+        double r1 = 2.0*(1.0*rand()/RAND_MAX) - 1.0; // random number -1 .. +1
+        double r2 = 2.0*(1.0*rand()/RAND_MAX) - 1.0; // random number -1 .. +1
+        double r3 = 2.0*(1.0*rand()/RAND_MAX) - 1.0; // random number -1 .. +1
+        double common_ampl_noise_frac = 1+commAmplNoise*r1;
+        double one_phot_noise_frac = onePhotonPhaseNoise*r2;
+        double two_phot_noise_frac = twoPhotonPhaseNoise*r3;
+        EdL=EdLo * common_ampl_noise_frac * exp(i*one_phot_noise_frac);
+        EdR=EdRo * common_ampl_noise_frac * exp(i*one_phot_noise_frac);
+        EpL=EpLo * common_ampl_noise_frac * exp(i*one_phot_noise_frac) * exp(i*two_phot_noise_frac);
+        EpR=EpRo * common_ampl_noise_frac * exp(i*one_phot_noise_frac) * exp(i*two_phot_noise_frac);
+      } else {
+        // Initial E-fields are velocity independent
+        // via xmds magic we are accessing 0th velocity element of E-fields
+        // and assigning it to all velocity components of the E-fields 
+        long old_tv_E_field_index_pointer = _tv_E_field_index_pointer;
+        _tv_E_field_index_pointer = old_tv_E_field_index_pointer - _index_v * _tv_E_field_ncomponents;
+        complex EdL_v0 = EdL;
+        complex EdR_v0 = EdR;
+        complex EpL_v0 = EpL;
+        complex EpR_v0 = EpR;
+
+        _tv_E_field_index_pointer = old_tv_E_field_index_pointer;
+        
+        EdR = EdR_v0;
+        EdL = EdL_v0;
+        EpR = EpR_v0;
+        EpL = EpL_v0;
+      }
 
 			// Temporary pulse in all fields
 			/*