投稿日:2008/06/20投稿者:小島千昭
東京大学工学部計数工学科 システム情報談話会 

7月14日13時より,東大本郷キャンパスにおいて,
柳澤政宏先生(オーストラリア国立大学; ANU)のセミナーを,
東京大学工学部計数工学科 システム情報談話会として開催いたします.
柳澤先生には,リヤプノフ安定性やLQG最適制御といった古典・現代制御の手法の
量子力学系への適用についてご講演いただきます. 
題目や概要などの詳細は以下に記しておりますので,ご参照いただけると幸いです.
ご多忙中のところとは存じますが,皆様奮ってご参加をお待ちいたしております.


日時:2008年7月14日(月) 13:00〜14:30

場所:東京大学 本郷キャンパス 工学部6号館 3階セミナー室AD

(アクセス) http://www.u-tokyo.ac.jp/campusmap/cam01_04_07_j.html#hongo

講演者:柳澤政宏先生(オーストラリア国立大学,Department of Engineering)

題目:Applications of classical and modern control techniques to quantum systems

概要: Lyapunov stability and LQG control are the most fundamental and 
important techniques of classical and modern control theory. In this 
talk, we discuss the utility of these control techniques in quantum 
information technologies using examples such as spins, optical cavities and 
Bose-Einstein condensates. Spins and optical cavities are well studied quantum 
system in quantum information and control, and Lyapunov functions are useful 
to show the performance of feedback systems as well as the stability. Other 
physical substrates of quantum information processing, atom laser beams, are 
devices that exploit wave properties of matter to form a beam of atoms that is 
analogous to optical lasers in that it is coherent and intense. While the 
concept of an atom laser has been experimentally demonstrated, atoms lasers 
are still quite a way from being available for use in applications. Coherence 
control is the key to success in the applications of atom laser beams because 
atoms are much more fragile than photons. In this example, it is shown that 
atom laser coherence is improved by a new control scheme based on LQG control. 

連絡先: 原 辰次 (Shinji_Hara@ipc.i.u-tokyo.ac.jp)
        小島千昭 (Chiaki_Kojima@ipc.i.u-tokyo.ac.jp)