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Regensburg 2016 – wissenschaftliches Programm

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TT: Fachverband Tiefe Temperaturen

TT 27: Transport: Quantum Coherence and Quantum Information Systems - Theory 1
(Joint session of HL, MA and TT organized by TT)

TT 27.5: Vortrag

Dienstag, 8. März 2016, 10:30–10:45, H22

Gradient optimization for analytic controls — •Elie Assémat1, Shai Machnes2, David Tannor2, and Frank Wilhelm-Mauch11Saarland University, Saarbrücken, Germany — 2Weizmann Institute of Science, Rehovot, Israël

Quantum optimal control becomes a necessary step in a growing number of studies in the quantum realm. Recent experimental advances showed that superconducting qubits can be controlled with an impressive accuracy. However, most of the standard optimal control algorithms are not designed to manage such high accuracy. To tackle this issue, a novel quantum optimal control algorithm have been introduced: the Gradient Optimization for Analytic conTrols (GOAT). It avoids the piecewise constant approximation of the control pulse used by standard algorithms. This allows an efficient implementation of very high accuracy optimization. It also includes a novel method to compute the gradient that provides many advantages, e.g. the absence of backpropagation or the natural route to optimize the robustness of the control pulses. This talk will present the GOAT algorithm and a few applications to transmons systems.

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