Hendra Nurdin

Experimental coherent-feedback quantum control: opportunities and challenges
(Wednesday, 27 August, 8:30-9:15)

Abstract:

In this talk I will describe recent joint work (with M. R. James and A. C. Doherty) on a network synthesis theory for linear dynamical quantum stochastic systems that are encountered in linear quantum optics and in phenomenological models of linear quantum circuits. In particular, such a theory will enable the systematic realization of coherent/fully quantum linear stochastic controllers for quantum control, amongst other potential applications. I will show how general linear dynamical quantum stochastic systems can be constructed by assembling an appropriate interconnection of one degree of freedom open quantum harmonic oscillators and, in the quantum optics setting, discuss how such a network of oscillators can, in principle, be approximately synthesized and implemented in a systematic way from some linear and nonlinear quantum optical elements. An example will be provided to illustrate the theory.