336 citations · 1.8k across the 72 of their papers we have counts for
9 papers · 2 filters
Limits of optimal control yields achievable with quantum controllers
Re-Bing Wu, Constantin Brif, Matthew R. James +1
In quantum optimal control theory, kinematic bounds are the minimum and maximum values of the control objective achievable for any physically realizable system dynamics. For a give…
Analysis and Control of Quantum Finite-level Systems Driven by Single-photon Input States
Yu Pan, Guofeng Zhang, Matthew R. James
Single-photon states, which carry quantum information and coherently interact with quantum systems, are vital to the realization of all-optical engineered quantum networks. In this…
Feedback Policies for Measurement-based Quantum State Manipulation
Shuangshuang Fu, Guodong Shi, Alexandre Proutiere +1
In this paper, we propose feedback designs for manipulating a quantum state to a target state by performing sequential measurements. In light of Belavkin's quantum feedback control…
Comparing resolved-sideband cooling and measurement-based feedback cooling on an equal footing: analytical results in the regime of ground-state cooling
Kurt Jacobs, Hendra I. Nurdin, Frederick W. Strauch +1
We show that in the regime of ground-state cooling, simple expressions can be derived for the performance of resolved-sideband cooling --- an example of coherent feedback control -…
Information States in Control Theory: From Classical to Quantum
Matthew James
This paper is concerned with the concept of {\em information state} and its use in optimal feedback control of classical and quantum systems. The use of information states for meas…
Quantum Control Theory
Matthew James
This paper explains some fundamental ideas of {\em feedback} control of quantum systems through the study of a relatively simple two-level system coupled to optical field channels.…