Viola, L.
and Knill, E.
(2005),
Random decoupling schemes for quantum dynamical control and error suppression, Physical Review Letters
(Accessed December 13, 2024)
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Random decoupling schemes for quantum dynamical control and error suppression
Published
Author(s)
Lorenza Viola,
Abstract
We introduce a general control-theoretic setting for random dynamical decoupling, applicable to quantum , engineering of both closed-and open-system dynamics. The basic idea is to randomize the operations of the controller, by designing the control propagator according to a random rather than deterministic path on a group. We characterize the performance of random decoupling schemes, and identify control scenarios where they can significantly weaken time scale requirements as compared to standard cyclic protocols. Implications for reliable quantum computation are discussed.Citation
Physical Review Letters
Volume
94
Pub Type
Journals
Keywords
decoupling, quantum computation, quantum error control
Citation
Issues
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Created February 17, 2005, Updated October 12, 2021