二乗和緩和を用いた遅延存在下の量子スピン制御系設計

• 加嶋 健司

  東京工業大学大学院情報理工学研究科

書誌事項

タイトル別名

• Semi-Algebraic Problem Approach for Design of Quantum Spin Control Systems in the Face of Feedback Delay
• ニジョウ ワ カンワ オ モチイタ チエン ソンザイカ ノ リョウシ スピン セイギョケイ セッケイ

抄録

Accurate control of quantum spin is necessary in order to utilize quantum spin as the physical realization of the quantum bit. Feedback control (based on continuous quantum measurement) of quantum spin systems inevitably suffers from estimation delays. In this paper, we state that a control system which takes into account these delays can be described by using stochastic delay differential systems. Moreover, we can restrict our analysis to the class of systems which have polynomial coefficients and evolve in a bounded semi-algebraic set. Then, the problem of stabilizing such systems is shown to be solvable effectively via reduction to a semi-algebraic problem.

収録刊行物

• システム制御情報学会論文誌

  システム制御情報学会論文誌 21 (4), 111-119, 2008

  一般社団法人 システム制御情報学会

キーワード

• quantum spin control system
• feedback delay
• sums of squares relaxation of semi-algebraic problems

詳細情報

• CRID: 1390001205166105216
• NII論文ID: 10020836155
• NII書誌ID: AN1013280X
• DOI: 10.5687/iscie.21.111
• ISSN: 2185811X
• ISSN: 13425668
• NDL書誌ID: 9459458
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I9459458
• 本文言語コード: ja
• データソース種別:
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• 抄録ライセンスフラグ: 使用不可