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How to use this applet
(a detailed description is available in German, see previous site)
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The topmost frame plots the probability density of both levels. Their sum is aways equal to one.
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The second frame displays real and imaginary part of the probability amplitude for a transition from level |1> to level |2>. The real part is nonzero for a detuned stimulation
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The last plotter displays the pulse that excites the two level system. At runtime, the pulse is slowly overwritten to indicate the current level of the electric field.
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If there is no detuning, the fast frequency of the pulse fits exactly to the energy gap of the level.
- The attenuation knob modifies the (phenomenological) environment of the two level system (dissipation, perturbation). T2 is the rate of dephasing (attenuation of #961;12). Including T1 results in a supplementary attenuation of ρ11 and ρ22.
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To save your simulation results, click 'show data'. The data is tab-seperated.