2000 Fiscal Year Annual Research Report

フラクタルアンテナ構造を持つ分子集団系と量子場の相互作用の理論的研究

Research Project

Project/Area Number	12740320
Research Institution	Osaka University
Principal Investigator	中野雅由大阪大学, 大学院・理学研究科, 講師 (80252568)
Keywords	量子光学 / スクイズド光 / 量子位相 / 崩壊-復活 / 分子間相互作用 / アンテナ分子 / Jaynes-Cummingsモデル
Research Abstract	本年度は、単一複数状態モデルからなる分子系と1モードおよび2モードフォトン場との相互作用の量子ダイナミクスを扱う方法の開発を行った.回転波近似等が通常用いられるが,非共鳴領域も扱うためここでは数値的に厳密に扱う方法を採用した.さらに、フォトン場と分子系の状態間相対位相のダイナミクスを調べるため、Pegg-Barnett位相演算子、擬確率分布関数、および非対角分子密度行列を使用した解析を行った。フォトン場としては、通常の良く使われるコヒーレント場だけでなく、スクイズド場、カオス場に対するダイナミクスも検討した。1モードスクイズド場を使用した場合、コヒーレント場で見られた崩壊-復活現象がその振幅や崩壊・復活時間においてスクイジングの方向や強度に敏感に影響されることが判明した。これにより、外場の量子統計性を調節することで物質系のポピュレーションや位相の動的制御の可能性が示唆された。一方、2モード場の場合には、モード間相関のある2モードスクイズド場を使用することにより、1モード場に関する量は、熱的古典的な振る舞いをするが、2モード場に関与する量(例えば2フォトン過程)は、量子論的な振る舞いをすることが判明した。このような量子光と3状態分子系を組み合わすことで、量子性だけでなく古典性をも同時に制御できるダイナミクスを実現できる可能性を指摘した。

Research Products
(16 results)

All Other

All Publications (16 results)

[Publications] M.Takahata: "Exciton migration dynamics of D58-like dendritic molecular aggregate"Mol.Cryst.Liq.Cryst.. (印刷中).
[Publications] H.Fujita: "Theoretical study on near-resonant third-order nonlinear optical properties (γ) of dendritic aggregates : intermolecular-interaction and relaxation effects on γ,"Mol.Cryst.Liq.Cryst.. (印刷中).
[Publications] M.Takahata: "Theoretical study on the off-resonant polarizabilities of linear, square-lattice and dendritic molecular aggregates"Synthetic Metals. (印刷中).
[Publications] H.Fujita: "Theoretical study on the near-resonant second hyperpolarizability (γ) of a dendritic molecular aggregate : the spatial contribution of intermolecular-interaction and relaxation to γ.,"Synthetic Metals. (印刷中).
[Publications] H.Nagao: "Exciton dynamics in model dendrimers"Nonlinear optics,. 26. 103-200 (2000)
[Publications] M.Nakano: "Structure-Property Correlation of the Second Hyperpolarizability and Visualization of Its Spatial Contribution"Nonlinear optics. 26. 51-58 (2000)
[Publications] M.Takahata: "Third-order nonlinear optical properties of dendritic molecular aggregates : effects of aggregate architecture"Nonlinear optics. 26. 177-184 (2000)
[Publications] H.Fujita: "Spatial contribution of exciton generation to the second hyperpolarizability of a dendritic molecular aggregate"Nonlinear optics. 26. 185-192 (2000)
[Publications] M.Nakano: "Qunatum-phase and information-entropy dynamics of molecular climers and trimers interacting with quantized fields"Synthetic Metals. (印刷中).
[Publications] M.Nakano: "Theoretical study on the polarizabilities of two-dimensionally-grown dendritic molecular aggregates : the architecture- and size-dependency"Mol.Cryst.Liq.Cryst.. (印刷中).
[Publications] H.Nagao: "Exciton condensate in model dendrimers"Mol.Cryst.Liql Cryst.. 342. 273-278 (2000)
[Publications] M.Takahata: "Exciton Migration Pathways in Dendritic Molecular Aggregates"Mol.Cryst.Liql Cryst.. 342. 297-302 (2000)
[Publications] H.Fujita: "Polarizabilities of Dendritic Molecular Aggregates : Contribution of Exciton Generation,"Mol.Cryst.Liql Cryst.. 342. 303-308 (2000)
[Publications] M.Nakano: "On the second hyperpolarizabilities (g) of three charged states of tetrathiapentalene and tetrathiafulvalene : A g density analysis"Chem.Phys.Lett. 321. 491-497 (2000)
[Publications] M.Nakano: "Exciton migration dynamics in a dendritic molecular aggregate"Chem.Phys.Lett.. 323. 249-256 (2000)
[Publications] M.Nakano: "Intermolecular-interaction effects on quantum-phase and information-entropy dynamics of dimers interacting with a single-mode coherent field"Chem.Phys.Lett.. 324. 289-300 (2000)

2000 Fiscal Year Annual Research Report

フラクタルアンテナ構造を持つ分子集団系と量子場の相互作用の理論的研究

Principal Investigator

中野 雅由 大阪大学, 大学院・理学研究科, 講師 (80252568)

Research Products

[Publications] M.Takahata: "Exciton migration dynamics of D58-like dendritic molecular aggregate"Mol.Cryst.Liq.Cryst.. (印刷中).

[Publications] H.Fujita: "Theoretical study on near-resonant third-order nonlinear optical properties (γ) of dendritic aggregates : intermolecular-interaction and relaxation effects on γ,"Mol.Cryst.Liq.Cryst.. (印刷中).

[Publications] M.Takahata: "Theoretical study on the off-resonant polarizabilities of linear, square-lattice and dendritic molecular aggregates"Synthetic Metals. (印刷中).

[Publications] H.Fujita: "Theoretical study on the near-resonant second hyperpolarizability (γ) of a dendritic molecular aggregate : the spatial contribution of intermolecular-interaction and relaxation to γ.,"Synthetic Metals. (印刷中).

[Publications] H.Nagao: "Exciton dynamics in model dendrimers"Nonlinear optics,. 26. 103-200 (2000)

[Publications] M.Nakano: "Structure-Property Correlation of the Second Hyperpolarizability and Visualization of Its Spatial Contribution"Nonlinear optics. 26. 51-58 (2000)

[Publications] M.Takahata: "Third-order nonlinear optical properties of dendritic molecular aggregates : effects of aggregate architecture"Nonlinear optics. 26. 177-184 (2000)

[Publications] H.Fujita: "Spatial contribution of exciton generation to the second hyperpolarizability of a dendritic molecular aggregate"Nonlinear optics. 26. 185-192 (2000)

[Publications] M.Nakano: "Qunatum-phase and information-entropy dynamics of molecular climers and trimers interacting with quantized fields"Synthetic Metals. (印刷中).

[Publications] M.Nakano: "Theoretical study on the polarizabilities of two-dimensionally-grown dendritic molecular aggregates : the architecture- and size-dependency"Mol.Cryst.Liq.Cryst.. (印刷中).

[Publications] H.Nagao: "Exciton condensate in model dendrimers"Mol.Cryst.Liql Cryst.. 342. 273-278 (2000)

[Publications] M.Takahata: "Exciton Migration Pathways in Dendritic Molecular Aggregates"Mol.Cryst.Liql Cryst.. 342. 297-302 (2000)

[Publications] H.Fujita: "Polarizabilities of Dendritic Molecular Aggregates : Contribution of Exciton Generation,"Mol.Cryst.Liql Cryst.. 342. 303-308 (2000)

[Publications] M.Nakano: "On the second hyperpolarizabilities (g) of three charged states of tetrathiapentalene and tetrathiafulvalene : A g density analysis"Chem.Phys.Lett. 321. 491-497 (2000)

[Publications] M.Nakano: "Exciton migration dynamics in a dendritic molecular aggregate"Chem.Phys.Lett.. 323. 249-256 (2000)

[Publications] M.Nakano: "Intermolecular-interaction effects on quantum-phase and information-entropy dynamics of dimers interacting with a single-mode coherent field"Chem.Phys.Lett.. 324. 289-300 (2000)

中野雅由大阪大学, 大学院・理学研究科, 講師 (80252568)