Coherent feedback that beats all measurement-based feedback protocols
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Jacobs-2014-Coherent feedback th.pdf
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Author(s)
Jacobs, Kurt
Wang, Xiaoting
Wiseman, Howard M.
Date Issued
July 2014
Journal
New Journal of Physics
Publisher
IOP Publishing
Citation
Jacobs, Kurt, Xiaoting Wang, and Howard M Wiseman. “Coherent Feedback That Beats All Measurement-Based Feedback Protocols.” New Journal of Physics 16, no. 7 (July 1, 2014): 073036. © 2014 IOP Publishing Ltd and Deutsche Physikalische Gesellschaft
Version
Final published version
Abstract
We show that when the speed of control is bounded, there is a widely applicable minimal-time control problem for which a coherent feedback protocol is optimal, and is faster than all measurement-based feedback protocols, where the latter are defined in a strict sense. The superiority of the coherent protocol is due to the fact that it can exploit a geodesic path in Hilbert space, a path that measurement-based protocols cannot follow.
MIT Department
Massachusetts Institute of Technology. Research Laboratory of Electronics
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Creative Commons Attribution
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DOI of Published Version
https://doi.org/10.1088/1367-2630/16/7/073036
