Einladung zum Vortrag im Kolloquium Technische Kybernetik

  Theoretical Analysis of Quantum Control Systems Despite Feedback Delay

Prof. Dr. Kenji Kashima
Department of Mechanical and Environmental Informatics
Tokyo Institute of Technology
Tokyo •Japan

    Zeit: Freitag, 23. April 2010 · 14:00 Uhr
Ort: IST-Seminarraum/Room 3.243 • Pfaffenwaldring 9 • Campus Stuttgart-Vaihingen

Abstract

Quantum filtering theory has clarified that a number of quantum control problems can be formulated and solved within the framework of standard classical stochastic control theory. It has been pointed out that, for the implementation of controllers designed within this framework, a non-negligible computation time is required to process the estimation. In this talk, after a brief introduction of quantum filtering theory and stochastic master equation (SME), we investigate the effect of delays in quantum feedback control loops. In particular, we consider a 2-level quantum spin system and a linear quantum system, for which polynomial optimization techniques and classical linear control theory can be effectively utilized.

Biographical Information

Kenji Kashima was born in 1977 in Oita, Japan. He received his Bachelor's degree in engineering and his Master's and Doctoral degrees in informatics from Kyoto University, Japan, in 2000, 2002 and 2005, respectively. He is currently an Assistant Professor of the Graduate School of Information Science and Engineering, Tokyo Institute of Technology. His research interests include general theory for infinite-dimensional systems and stochastic systems, and their applications focusing on emerging areas.