Principle of coherent control using the example of tuning forks representing the two samples in the experiment. A bang (left, blue) excites both tuning forks to oscillate - analogous to the synchrotron pulse. After the bang, the sound of the first fork additionally hits the second fork as the second part of the double pulse. Depending on the delay with which the sound from the first fork hits the second, the vibration of the second fork is either dampened (a) or amplified (b). The control of quantum dynamics in atomic nuclei works in an analogous way.
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