Mintert, Florian

Noise-resilient quantum gates for trapped ions

Florian Mintert - Imperial College London, England

Abstract: The realisation of high-fidelity quantum gates typically requires a well-calibrated system, and unavoidable drift in system parameters implies the need for frequent recalibration. Suitably shaped driving fields on the other hand can make quantum gates resilient to drift in some system parameters. I will discuss some exemplary driving schemes that make gates for trapped ions resilient to drifts in frequency or amplitude of driving fields and to anharmonicities in the qubit-phonon coupling. With numerical examples I will show that such driving fields can help to realise high-fidelity gates despite substantial system imperfections.