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ISR Distinguished Lecturer: Hideo Mabuchi, "Coherent feedback control of quantum dynamical systems"
Tuesday, April 24, 2012
5:00 p.m.
1115 CSIC Building
For More Information:
Regina King
301 405 6615
rking12@umd.edu

ISR Distinguished Lecturer Series
Coherent feedback control of quantum dynamical systems

Hideo Mabuchi
Professor of Applied Physics
Stanford University

| video |


Reception sponsored by MiMo Cloud at 4:30 p.m.
Lecture at 5:00 p.m.

Roundtable discussion
Wednesday, April 25, 10:30 a.m., 1146 A.V. Williams Bldg.

Host
P. S. Krishnaprasad

Abstract
Quantum photonic devices being developed for advanced applications in information technology and metrology typically feature optical input-output channels that can be exploited for real-time feedback control. In the coherent feedback paradigm, optical fields coupled out from the component to be controlled are processed in a physical way and then fed back without ever being converted into electrical signals. The resulting feedback systems have the structure of optical interferometers, possibly with nonlinear components, but can be analyzed and designed using concepts from control theory and quantitative models based on quantum stochastic differential equations. In this talk I will review coherent feedback control as a core discipline of quantum engineering and discuss its emerging role as a sort of circuit theory for quantum and ultra-low power classical information processing. I will also briefly introduce our ongoing efforts to develop software tools for coherent feedback control that can be easily integrated into common systems engineering frameworks such as Modelica or VHDL.

Biography
Hideo Mabuchi received an A.B. in Physics (1992) from Princeton University and a Ph.D. in Physics (1998) from the California Institute of Technology. Upon graduation he joined the Caltech faculty, first as an Assistant Professor and later as Associate Professor of Physics and of Control and Dynamical Systems. In 2007 he became Professor of Applied Physics at Stanford University, where he currently also serves as Chair of the Department of Applied Physics. In 2005-6 he served as inaugural Chair of the APS Topical Group on Quantum Information, Concepts and Computation. Selected honors include an Office of Naval Research Young Investigator Award, a Research Fellowship from the A. P. Sloan Foundation, a Fellowship from the John D. and Catherine T. MacArthur Foundation, and the Mohammed Dahleh Distinguished Lectureship from UCSB.

This Event is For: Graduate • Undergraduate • Faculty • Post-Docs • Alumni • Corporate

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