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SAMOP 2023 – wissenschaftliches Programm

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QI: Fachverband Quanteninformation

QI 26: Quantum Control (joint session QI/Q)

QI 26.6: Vortrag

Donnerstag, 9. März 2023, 12:30–12:45, B305

Tailoring feedback control loops to work best where it matters the most — •Robin Oswald — ETH Zürich

Experiments in AMO physics rely on many feedback control loops stabilizing quantities such as temperatures, magnetic fields and laser phase, frequency and intensity. In most cases, PID controllers are used for these tasks, but they only allow for coarse adjustment of the relevant trade-offs. Here, I will present methods to augment and tailor control loops to be particularly effective in one or several narrow frequency bands, i.e. where there are particularly strong disturbances or where the apparatus is especially vulnerable to them, or both. Using examples from our trapped-ion laboratory I will illustrate how we can leverage these techniques to improve the performance of the feedback loops, and ultimately our experiments.

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