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FM: Fall Meeting

FM 22: Quantum Control

FM 22.6: Talk

Montag, 23. September 2019, 18:00–18:15, 3042

Generalized Filter Functions for Sequences of Quantum Gates — •Julian Teske, Pascal Cerfontaine, Tobias Hangleiter, and Hendrik Bluhm — JARA-FIT Institute for Quantum Information, Forschungszentrum Jülich GmbH and RWTH Aachen University, 52074 Aachen, Germany

When sequences of quantum gates are executed in the presence of non-Markovian noise, the process description of the entire operation is not given by the composition of the individual quantum processes. In my talk I will first present an extension of the filter function formalism to allow the efficient calculation of quantum processes in the presence of correlated noise, e.g. the 1/f-like noise found in many solid-state qubit systems. I will then use this formalism to obtain correction terms for sequences of quantum gates which depend on the individual gates' process descriptions and the structure of the algorithm. For all of these purposes we present an efficient and easy-to-use software implementation.