# Unification of dynamical decoupling and the quantum Zeno effect (6 pages)

@article{Facchi2004UnificationOD, title={Unification of dynamical decoupling and the quantum Zeno effect (6 pages)}, author={Paolo Facchi and Daniel A. Lidar and Saverio Pascazio}, journal={Physical Review A}, year={2004}, volume={69}, pages={32314} }

Chemical Physics Theory Group, Chemistry Department, University of Toronto,80 St. George Street, Toronto, Ontario M5S 3H6, Canada(Dated: February 1, 2008)We unify the quantum Zeno eﬀect (QZE) and the “bang-bang” (BB) decoupling method for sup-pressing decoherence in open quantum systems: in both cases strong coupling to an external systemor apparatus induces a dynamical superselection rule that partitions the open system’s Hilbert spaceinto quantum Zeno subspaces. Our uniﬁcation makes use of…

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