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arXiv:2110.12560

Robust optimal control of interacting multi-qubit systems for quantum sensing

Nguyen H. Le, Max Cykiert, Eran Ginossar

Published Oct 25, 2021• 2 citations
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Abstract

Realising high fidelity entangled states in controlled quantum many-body systems is challenging due to experimental uncertainty in a large number of physical quantities. We develop a robust optimal control method for achieving this goal in finite-size multi-qubit systems despite significant uncertainty in multiple parameters. We demonstrate its effectiveness in the generation of the Greenberger-Horne-Zeilinger state on a star graph of capacitively coupled transmons, and discuss its crucial role for achieving the Heisenberg limit of precision in quantum sensing.

DOI
10.48550/arxiv.2110.12560

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