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High-Fidelity Robust Qubit Control by Phase-Modulated Pulses

High-Fidelity Robust Qubit Control by Phase-Modulated Pulses

In the realm of superconducting qubits, significant efforts have been dedicated to optimizing control pulses, primarily by refining pulse envelopes to minimize unwanted excitations. This seminar presents innovative research from Prof. Gheorghe-Sorin Paraoanu’s lab at Aalto University, Finland, published in Physical Review Research, where a novel approach to qubit control is introduced. By phase-modulating the control pulses, this method achieves resilience against both amplitude and frequency errors. We explore the theoretical foundations and experimental demonstrations conducted on a circuit-QED system, showcasing robustness against both types of errors. (Phys. Rev. Research 6, 013188 – Published 21 February 2024).

The seminar is presented by Marko Kuzmanovic, with Michaela Eichinger hosting the event.

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