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levels=1:3;
% ----------- |1>
% / \
% E_d / \
% / \ E_p
% / \
% -------- |3> \
% \
% ___________ |2>
Nlevels=3;
w12=1e9;
w_hpf=6800;
w13=w12-w_hpf;
% unperturbed Hamiltonian energy levels
levels_energy=[ w12, 0, w_hpf];
levels_energy=levels_energy*hbar;
H0=zeros(Nlevels);
H0=diag(levels_energy);
%for i=1:Nlevels
%H0(i,i)=levels_energy(i);
%endfor
% decay matrix g(i,j) correspnds to decay from i-->j
gamma=6;
gamma_23=.01;
g_decay=zeros(Nlevels);
g_decay(1,2)=gamma; %upper level decay
g_decay(1,3)=gamma; %upper level decay
g_decay(3,2)=gamma_23; % lower levels mixing
g_decay(2,3)=gamma_23; % lower levels mixing
%defasing matris
g_deph=0;
g_dephasing=zeros(Nlevels);
g_dephasing(1,2)=g_deph;
g_dephasing(2,1)=g_dephasing(1,2);
g_dephasing(1,3)=g_deph;
g_dephasing(3,1)=g_dephasing(1,3);
% dipole matrix
dipole_elements=zeros(Nlevels);
dipole_elements(1,2)=1;
dipole_elements(2,1)=dipole_elements(1,2);
dipole_elements(3,1)=1;
dipole_elements(1,3)=dipole_elements(3,1);
%EM field definition
Ep=10.0;
Epc=conj(Ep);
Ed=0;
Edc=conj(Ed);
wd=w13;
wp=w12;
%modulation_freq=[0, wp, wd, -wp, -wd, wp-wd, wd-wp];
%E_field =[0, Ep, Ed, Epc, Edc, 0, 0 ];
modulation_freq=[0, wp, -wp];
E_field =[0, Ep, Epc];
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