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diff --git a/figs/2pt_fourier.fig/2pt_fourier_0.3.dat b/figs/2pt_fourier.fig/2pt_fourier_0.3.dat
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diff --git a/figs/2pt_fourier.fig/2pt_fourier_3.dat b/figs/2pt_fourier.fig/2pt_fourier_3.dat
new file mode 100644
index 0000000..c876b9c
--- /dev/null
+++ b/figs/2pt_fourier.fig/2pt_fourier_3.dat
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diff --git a/figs/2pt_fourier.fig/2pt_fourier_4.dat b/figs/2pt_fourier.fig/2pt_fourier_4.dat
new file mode 100644
index 0000000..714f67f
--- /dev/null
+++ b/figs/2pt_fourier.fig/2pt_fourier_4.dat
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diff --git a/figs/2pt_fourier.fig/2pt_fourier_5.dat b/figs/2pt_fourier.fig/2pt_fourier_5.dat
new file mode 100644
index 0000000..1f95da2
--- /dev/null
+++ b/figs/2pt_fourier.fig/2pt_fourier_5.dat
@@ -0,0 +1,100 @@
+ 8.000000000000000e-02 -1.657349932046348e-09
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diff --git a/figs/2pt_fourier.fig/2pt_fourier_full.gnuplot b/figs/2pt_fourier.fig/2pt_fourier_full.gnuplot
new file mode 100644
index 0000000..7dcb44a
--- /dev/null
+++ b/figs/2pt_fourier.fig/2pt_fourier_full.gnuplot
@@ -0,0 +1,45 @@
+set ylabel norotate "$\\mathcal S(\\kappa)$"
+set xlabel "$\\kappa$"
+
+#set xtics 1e-6, 1000, 1e6
+#set xtics add ("$10^{-6}$" 0.000001, "$10^{-3}$" 0.001, "$10^{0}$" 1, "$10^{3}$" 1000, "$10^6$" 1000000)
+#unset mxtics
+set xrange [:8]
+
+#set ytics 0, 1e-5, 2e-5	
+#set ytics add ("$10^{-5}$" 1e-5)
+#set mytics
+#set yrange [0.99998:1.0001]
+
+# default output canvas size: 12.5cm x 8.75cm
+set term lua tikz size 8,6 standalone
+
+set key bottom right box linetype rgbcolor"#999999" width 2.5 height 0.3 spacing 1.3
+
+rgb(r,g,b) = 65536 * int(r) + 256 * int(g) + int(b)
+circle_2_rgb(x) = (x < 1./6 ? rgb(255,x*6*255,0) : \
+		  (x < 2./6 ? rgb((2./6-x)*6*255,255,0) : \
+		  (x < 3./6 ? rgb(0,255,(x-2./6)*6*255) : \
+		  (x < 4./6 ? rgb(0,(4./6-x)*6*255,255) : \
+		  (x < 5./6 ? rgb((x-4./6)*6*255,0,255) : \
+		              rgb(255,0,(1-x)*6*255) \
+		  )))))
+
+
+set style line 1 linetype rgbcolor circle_2_rgb(0.0) linewidth 2
+set style line 2 linetype rgbcolor circle_2_rgb(0.17) linewidth 2
+set style line 3 linetype rgbcolor circle_2_rgb(0.33) linewidth 2
+set style line 4 linetype rgbcolor circle_2_rgb(0.5) linewidth 2
+set style line 5 linetype rgbcolor circle_2_rgb(0.67) linewidth 2
+set style line 6 linetype rgbcolor circle_2_rgb(0.83) linewidth 2
+
+
+plot \
+ "2pt_fourier_5.dat" using 1:(1+$2/1e-5) with lines ls 1 title "$\\rho=10^{-5}$" ,\
+ "2pt_fourier_4.dat" using 1:(1+$2/1e-4) with lines ls 2 title "$\\rho=10^{-4}$" ,\
+ "2pt_fourier_3.dat" using 1:(1+$2/1e-3) with lines ls 3 title "$\\rho=10^{-3}$" ,\
+ "2pt_fourier_2.dat" using 1:(1+$2/1e-2) with lines ls 4 title "$\\rho=10^{-2}$" ,\
+ "2pt_fourier_1.dat" using 1:(1+$2/1e-1) with lines ls 5 title "$\\rho=10^{-1}$" ,\
+ "2pt_fourier_0.3.dat" using 1:(1+$2/0.3) with lines ls 6 title "$\\rho=0.3$"
+
+
diff --git a/figs/2pt_fourier.fig/2pt_fourier_peak.gnuplot b/figs/2pt_fourier.fig/2pt_fourier_peak.gnuplot
new file mode 100644
index 0000000..1382c9c
--- /dev/null
+++ b/figs/2pt_fourier.fig/2pt_fourier_peak.gnuplot
@@ -0,0 +1,45 @@
+set ylabel norotate "$\\mathcal S(\\kappa)$"
+set xlabel "$\\kappa$"
+
+#set xtics 1e-6, 1000, 1e6
+#set xtics add ("$10^{-6}$" 0.000001, "$10^{-3}$" 0.001, "$10^{0}$" 1, "$10^{3}$" 1000, "$10^6$" 1000000)
+#unset mxtics
+set xrange [:8]
+
+#set ytics 0, 1e-5, 2e-5	
+#set ytics add ("$10^{-5}$" 1e-5)
+#set mytics
+set yrange [0.99998:1.0001]
+
+# default output canvas size: 12.5cm x 8.75cm
+set term lua tikz size 8,6 standalone
+
+set key top right box linetype rgbcolor"#999999" width 2.5 height 0.3 spacing 1.3
+
+rgb(r,g,b) = 65536 * int(r) + 256 * int(g) + int(b)
+circle_2_rgb(x) = (x < 1./6 ? rgb(255,x*6*255,0) : \
+		  (x < 2./6 ? rgb((2./6-x)*6*255,255,0) : \
+		  (x < 3./6 ? rgb(0,255,(x-2./6)*6*255) : \
+		  (x < 4./6 ? rgb(0,(4./6-x)*6*255,255) : \
+		  (x < 5./6 ? rgb((x-4./6)*6*255,0,255) : \
+		              rgb(255,0,(1-x)*6*255) \
+		  )))))
+
+
+set style line 1 linetype rgbcolor circle_2_rgb(0.0) linewidth 2
+set style line 2 linetype rgbcolor circle_2_rgb(0.17) linewidth 2
+set style line 3 linetype rgbcolor circle_2_rgb(0.33) linewidth 2
+set style line 4 linetype rgbcolor circle_2_rgb(0.5) linewidth 2
+set style line 5 linetype rgbcolor circle_2_rgb(0.67) linewidth 2
+set style line 6 linetype rgbcolor circle_2_rgb(0.83) linewidth 2
+
+
+plot \
+ "2pt_fourier_5.dat" using 1:(1+$2/1e-5) with lines ls 1 title "$\\rho=10^{-5}$" ,\
+ "2pt_fourier_4.dat" using 1:(1+$2/1e-4) with lines ls 2 title "$\\rho=10^{-4}$" ,\
+ "2pt_fourier_3.dat" using 1:(1+$2/1e-3) with lines ls 3 title "$\\rho=10^{-3}$" ,\
+ "2pt_fourier_2.dat" using 1:(1+$2/1e-2) with lines ls 4 title "$\\rho=10^{-2}$" ,\
+ "2pt_fourier_1.dat" using 1:(1+$2/1e-1) with lines ls 5 title "$\\rho=10^{-1}$" ,\
+ "2pt_fourier_0.3.dat" using 1:(1+$2/0.3) with lines ls 6 title "$\\rho=0.3$"
+
+
diff --git a/figs/2pt_fourier.fig/Makefile b/figs/2pt_fourier.fig/Makefile
new file mode 100644
index 0000000..e5ca83d
--- /dev/null
+++ b/figs/2pt_fourier.fig/Makefile
@@ -0,0 +1,53 @@
+PROJECT=$(basename $(wildcard *.gnuplot))
+
+SIMPLESOLV=simplesolv~/Work/Research/2018+bose_gas/cmp/simplesolv/source/src
+
+all: $(addsuffix .pdf, $(PROJECT))
+
+define gnuplot2pdf
+	gnuplot $(1).gnuplot > $(1).tikz.tex
+	pdflatex -jobname $(1) -file-line-error $(1).tikz.tex
+endef
+
+define bigeq_run
+	julia -p 16 $(SIMPLESOLV)/main.jl -p "eq=bigeq;N=12;P=8;J=10;maxiter=100;v_a=8;rho=1e-$(1);minlrho_init=-6;nlrho_init=100;window_L=100;kmin=0;kmax=8;nk=100" -M anyeq 2pt_fourier > 2pt_fourier_$(1).dat
+endef
+define bigeq_run_fine
+	julia -p 16 $(SIMPLESOLV)/main.jl -p "eq=bigeq;N=12;P=8;J=10;maxiter=100;v_a=8;rho=1e-$(1);minlrho_init=-6;nlrho_init=100;window_L=100;kmin=0;kmax=8;nk=150" -M anyeq 2pt_fourier > 2pt_fourier_$(1).dat
+endef
+define bigeq_run_plus
+	julia -p 16 $(SIMPLESOLV)/main.jl -p "eq=bigeq;N=18;P=12;J=15;maxiter=100;v_a=8;rho=1e-$(1);minlrho_init=-6;nlrho_init=100;window_L=50;kmin=0;kmax=8;nk=100" -M anyeq 2pt_fourier > 2pt_fourier_$(1).dat
+endef
+
+2pt_fourier_5.dat:
+	$(call bigeq_run,5)
+2pt_fourier_4.dat:
+	$(call bigeq_run,4)
+2pt_fourier_3.dat:
+	$(call bigeq_run,3)
+2pt_fourier_2.dat:
+	$(call bigeq_run_fine,2)
+2pt_fourier_1.dat:
+	$(call bigeq_run_plus,1)
+2pt_fourier_0.3.dat:
+	julia -p 16 $(SIMPLESOLV)/main.jl -p "eq=bigeq;N=18;P=12;J=15;maxiter=100;v_a=8;rho=0.3;minlrho_init=-6;nlrho_init=100;window_L=25;kmin=0;kmax=8;nk=100" -M anyeq 2pt_fourier > 2pt_fourier_0.3.dat
+
+DATS=2pt_fourier_5.dat 2pt_fourier_4.dat 2pt_fourier_3.dat 2pt_fourier_2.dat 2pt_fourier_1.dat 2pt_fourier_0.3.dat
+
+2pt_fourier_peak.pdf: $(DATS)
+	$(call gnuplot2pdf,$(basename $@))
+2pt_fourier_full.pdf: $(DATS)
+	$(call gnuplot2pdf,$(basename $@))
+
+
+clean-aux:
+	rm -f $(addsuffix .tikz.tex, $(PROJECT))
+	rm -f *.aux *.log
+
+clean-dat:
+	rm -f $(DATS)
+
+clean-pdf:
+	rm -f $(addsuffix .pdf, $(PROJECT))
+
+clean: clean-aux clean-pdf