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Q: Fachverband Quantenoptik und Photonik

Q 26: Poster – Precision Measurement, Metrology, and Quantum Effects

Q 26.19: Poster

Dienstag, 11. März 2025, 14:00–16:00, Tent

Software framework for decoherence-free control design in surface ion traps — •Eric Benjamin Kopp — Universität Innsbruck

We present details of the Generalized Control of Noiseless Subspaces (GCNS) framework, a MATLAB- and Java-based software library for computing decoherence-free control strategies for a broad class of open quantum model representations (e.g., Lindbladians, channel matrices, Kraus operators). The framework efficiently solves four constituent problems: i) identifying candidate subsystem codes in quantum noiseless subspaces (including decoherence-free subspaces), ii) determining model controllability subject to the requirement for zero information loss, iii) programmatically selecting control channels/resources from large candidate sets, and iv) generating control input signals for realizing arbitrary unitary gates acting on 1-6 logical qudits. The presentation includes results from the framework applied to a segmented surface ion trap model currently under development at the Universität Innsbruck.

Keywords: decoherence free subspaces; quantum optimal control; surface ion traps; quantum noiseless subspaces; quantum control software