Non-Markovian noise that cannot be dynamically decoupled by periodic spin echo pulses

Dynamical decoupling is the leading technique to remove unwanted interactions in a vast range of quantum systems through fast rotations. But what determines the time-scale of such rotations in order to achieve good decoupling? By providing an explicit counterexample of a qubit coupled to a charge...

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Bibliographic Details
Main Author: Daniel Burgarth, Paolo Facchi, Martin Fraas, Robin Hillier
Format: Article
Language:English
Published: SciPost 2021-08-01
Series:SciPost Physics
Online Access:https://scipost.org/SciPostPhys.11.2.027