Coherent feedback that beats all measurement-based feedback protocols

oleh: Kurt Jacobs, Xiaoting Wang, Howard M Wiseman

Format: Article
Diterbitkan: IOP Publishing 2014-01-01

Deskripsi

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.