initial release based on Melissa's code

1 files changed, 140 insertions, 0 deletions

diff --git a/delta_2photon_noise.xmds b/delta_2photon_noise.xmds
new file mode 100644
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+<?xml version="1.0"?>
+<simulation xmds-version="2">
+
+	<name>delta_2photon_noise</name>
+
+	<author>E. Mikhailov, M. Guidry</author>
+	<description>
+		Solving 3 level atom in lambda field configuration,
+		no field propagation included. Noise on delta_2photon.
+	</description>
+
+	<features>
+		<benchmark />
+		<bing />
+		<fftw plan="patient" />
+		<openmp />
+		<auto_vectorise />
+		<globals>
+			<![CDATA[
+			const complex g=10;
+			const complex gbc=.001;
+			const complex Split = 1;
+			const double tset=5;
+			const double alpha = 0;
+
+			complex Gab, Gca, Gcb, GCB;
+			complex Ep,Ed,Epc,Edc;
+			complex noise;
+			double delta_2photon, delta_d;
+			complex rba,rac,rbc;
+			complex rBA,rAC,rBC;
+			complex drive_field0=1, probe_field0=1;
+			]]>
+		</globals>
+	</features>
+
+	<geometry>
+		<propagation_dimension> t </propagation_dimension>
+		<transverse_dimensions>
+			<dimension name="delta_2photon" lattice="128"  domain="(-25, 25)" />
+		</transverse_dimensions>
+	</geometry>
+
+	<driver name="multi-path" paths="10" />
+
+	<noise_vector name="drivingNoise" kind="wiener" type="real" method="dsfmt" >
+    		<components>Eta</components>
+  	</noise_vector>
+
+	<vector name="density_matrix" type="complex" dimensions="delta_2photon">
+		<components>raa rbb rcc rab rca rcb rAB rCA rCB</components>
+		<initialisation>
+			<![CDATA[
+			raa = 0;
+			rbb = 1;
+			rcc = 0;
+			rab = 0;
+			rca = 0;
+			rcb= 0;
+			rAB = 0;
+			rCA = 0;
+			rCB= 0;
+			]]>
+		</initialisation>
+	</vector>
+
+	<sequence>
+		<integrate algorithm="ARK45" interval="3.0" tolerance="1e-7">
+			<samples>100</samples>
+			<operators>
+				<integration_vectors>density_matrix</integration_vectors>
+				<dependencies>drivingNoise</dependencies>
+				<![CDATA[
+				delta_d=0;
+
+				noise = Eta*alpha;
+				Ed=drive_field0;
+				Ep=probe_field0;
+
+				Epc = conj(Ep);
+				Edc = conj(Ed);
+
+				Gab=g+i*(delta_d+delta_2photon+noise);
+				Gca=g-i*(delta_d);
+				Gcb=gbc+i*(Split + delta_2photon+noise);
+				GCB=gbc+i*(-Split + delta_2photon-noise);
+
+
+				rba=conj(rab);
+				rac=conj(rca);
+				rbc=conj(rcb);
+				rBA=conj(rAB);
+				rAC=conj(rCA);
+				rBC=conj(rCB);
+
+				draa_dt = -i*Epc*rab+i*Ep*rba-i*Edc*rac+i*Ed*rca-2*g*raa;
+				drbb_dt =  i*Epc*rab-i*Ep*rba+g*raa-gbc*rbb+gbc*rcc;
+				drcc_dt =  i*Edc*rac-i*Ed*rca+g*raa-gbc*rcc+gbc*rbb;
+				drab_dt = -Gab*rab+i*Ep*(rbb-raa)+i*Ed*rcb;
+				drca_dt = -Gca*rca+i*Edc*(raa-rcc)-i*Epc*rcb;
+				drcb_dt = -Gcb*rcb-i*Ep*rca+i*Edc*rab;
+				drAB_dt = -Gab*rAB+i*Ed*(rbb-raa)+i*Ep*rCB;
+				drCA_dt = -Gca*rCA+i*Epc*(raa-rcc)-i*Edc*rCB;
+				drCB_dt = -GCB*rCB-i*Ed*rCA+i*Epc*rAB;
+					]]>
+				</operators>
+			</integrate>
+		</sequence>
+
+
+
+
+		<!-- The output to generate -->
+		<output format="ascii" filename="delta_2photon_noise_alpha_1.xsil">
+			<group>
+				<sampling basis="delta_2photon" initial_sample="yes">
+					<dependencies>density_matrix </dependencies>
+					<moments>eit_signal mor_signal rab_rlOut rab_imOut rca_rlOut rca_imOut raaOut rbbOut rccOut noiseOut</moments>
+					<![CDATA[
+					rab_rlOut = rab.Re();
+					rab_imOut = rab.Im();
+					rca_rlOut = rca.Re();
+					rca_imOut = rca.Im();
+					raaOut = raa.Re();
+					rbbOut = rbb.Re();
+					rccOut = rcc.Re();
+					noiseOut = noise.Re();
+					eit_signal = abs(rab + rAB) + abs(rca + rCA);
+					mor_signal = abs(rab + rAB) - abs(rca + rCA);
+					]]>
+				</sampling>
+			</group>
+		</output>
+
+	</simulation>
+	
+<!-- 
+vim: ts=2 sw=2 foldmethod=indent: 
+-->
+