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QI: Fachverband Quanteninformation

QI 23: Quantum Control

QI 23.11: Talk

Thursday, March 21, 2024, 12:15–12:30, HFT-FT 131

Deciding Observability in Quantum Dynamics Easily — Markus Wiener and •Thomas Schulte-Herbrüggen — Technical University of Munich (TUM)

Among the questions arising in quantum engineering there is a practical yet fundamental one: given a controlled quantum dynamical system, for which observables can measurements give full information for system identification?

In finite-dimensional closed systems, a unified (Lie) frame of quantum systems theory settles this observability problem—as will be illustrated in paradigmatic n-qubit systems. Implications and generalisations will be outlined as well.

Keywords: quantum control; system identification