2001 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 / 2モードスクイズド光 / 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	前年度に続いて、2モードスクイズドコヒーレント場と2状態分子系からなる2量体との相互作用ダイナミクスを検討した。前年度同様、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、他に2モードコヒーレント場、2モードカオス場に対するダイナミクスも検討した。分子間には双極子-双極子相互作用を仮定し、この分子間相互作用が系の量子ダイナミクスに及ぼす影響を調べた。2モードカオス場は、位相が完全にランダムな集団のため、これにより、系の崩壊-復活現象はすぐに消去される。2モードコヒーレント場の場合は、1モードおよび2モードに関する崩壊-復活現象が見られる。考慮した2モードスクイズドコヒーレント場は、位相和のピークが鋭くなく、また、1光子共鳴に関する量は、ブロードな1光子フォトン場の数および位相分布のため、分子間相互用が小さい系では、崩壊-復活現象はほとんど見られないことが判明した。一方、分子間距離が小さくなると、長周期の崩壊-復活現象が現れてくることがわかった。これは、分子間相互作用により、1光子共鳴に関係した状態がシフトし、2光子共鳴に関係した寄与のみが残ってくるからであると考えられる。このように、分子間相互作用を変化させることにより、系のダイナミクスの量子性(崩壊-復活現象)をコントロールできる可能性が示唆された。

Research Products

(15 results)

All Other

All Publications (15 results)

[Publications] M.Nakano: "Qunatum-phase and information-entropy dynamics of molecular dimers and trimers interacting with quantized fields"Synthetic Metals. 121. 1473-1474 (2001)
[Publications] M.Nakano: "Third-Order Nonlinear Optical Properties of Dendritic Molecular Aggregates : Effects of Fractal Architecture"Int. J. Quantum Chem.. 84. 649-659 (2001)
[Publications] M.Nakano: "Qunatum-phase and infomation-Entropy Dynamics of Dimers Interacting with a Single-Mode Coherent Field : the Difference between One-and Two-Exciton Models"Int. J. Quantum Chem.. 84. 530-545 (2001)
[Publications] M.Nakano: "Third-order nonlinear optical properties of dendron parts in Cayley-tree-type dendrinmers"Polymeric Materials : Science & Engineering. 84. 706-707 (2001)
[Publications] M.Takahata: "Exciton migration dynamics of dendritic model aggregates using the master equation with weak excition-phonon coupling"Polymeric Materials : Science & Engineering. 84. 722-723 (2001)
[Publications] M.Takahata: "Theoretical study on the off-resonant polarizabilities of linear, square-lattice and dendritic molecular aggregates"Synthetic Metals. 121. 1263-1264 (2001)
[Publications] H.Fujita: "Theoretica1 study on the near-resonant second hyperpolarizabi1ity(γ)of a dendritic molecular aggregate : the spatial contribution of intermolecular-interaction and relaxation to γ A"Synthetic Metals. 121. 1265-1266 (2001)
[Publications] H.Nagao: "Theoretical study on quantum dynamics of Bose system interacting with photon field"Int. J. Quantum Chem.. 84. 401-408 (2001)
[Publications] M.Nakano: "Quantum-phase and information-entropy dynamics of a molecular system interacting with a two-mode squeezed coherent field"Phys.Rev. A. 64. 033415-1-033415-14 (2001)
[Publications] M.Nakano: "Size-dependency of polarizabilities of fractal-and non-fractal-structured oligomers modeled after dendron parts in Cayley-tree-type dendrimers"J. Chem. Phys.. 115. 1052-1059 (2001)
[Publications] M.Nakano: "Third-order nonlinear optical properties of fractal-and nonfractal-structured oligomers modeled after dendron parts in Cayley-tree-type dendrimers"J. Chem. Phys.. 115. 6780-6784 (2001)
[Publications] M.Nakano: "Theoretical study on the polarizabilities of two-dimensionally-grown dendritic molecular aggregates : the architecture-and size-dependency"Mol. Cryst. Liq. Cryst.. 371. 215-218 (2001)
[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.. 371. 261-264 (2001)
[Publications] M.Takahata: "Exciton migration dynamics of D58-like dendritic molecular aggregate"Mol. Cryst. Liq. Cryst.. 371. 345-348 (2001)
[Publications] M.Nakano: "Polarizabilities (α) of Dendritic Molecular Aggregates : Visualization of Intermolecular-Interaction and Damping Effects on α"J. Phys. Chem. A. 105. 5473-5478 (2001)

2001 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.Nakano: "Qunatum-phase and information-entropy dynamics of molecular dimers and trimers interacting with quantized fields"Synthetic Metals. 121. 1473-1474 (2001)

[Publications] M.Nakano: "Third-Order Nonlinear Optical Properties of Dendritic Molecular Aggregates : Effects of Fractal Architecture"Int. J. Quantum Chem.. 84. 649-659 (2001)

[Publications] M.Nakano: "Qunatum-phase and infomation-Entropy Dynamics of Dimers Interacting with a Single-Mode Coherent Field : the Difference between One-and Two-Exciton Models"Int. J. Quantum Chem.. 84. 530-545 (2001)

[Publications] M.Nakano: "Third-order nonlinear optical properties of dendron parts in Cayley-tree-type dendrinmers"Polymeric Materials : Science & Engineering. 84. 706-707 (2001)

[Publications] M.Takahata: "Exciton migration dynamics of dendritic model aggregates using the master equation with weak excition-phonon coupling"Polymeric Materials : Science & Engineering. 84. 722-723 (2001)

[Publications] M.Takahata: "Theoretical study on the off-resonant polarizabilities of linear, square-lattice and dendritic molecular aggregates"Synthetic Metals. 121. 1263-1264 (2001)

[Publications] H.Fujita: "Theoretica1 study on the near-resonant second hyperpolarizabi1ity(γ)of a dendritic molecular aggregate : the spatial contribution of intermolecular-interaction and relaxation to γ A"Synthetic Metals. 121. 1265-1266 (2001)

[Publications] H.Nagao: "Theoretical study on quantum dynamics of Bose system interacting with photon field"Int. J. Quantum Chem.. 84. 401-408 (2001)

[Publications] M.Nakano: "Quantum-phase and information-entropy dynamics of a molecular system interacting with a two-mode squeezed coherent field"Phys.Rev. A. 64. 033415-1-033415-14 (2001)

[Publications] M.Nakano: "Size-dependency of polarizabilities of fractal-and non-fractal-structured oligomers modeled after dendron parts in Cayley-tree-type dendrimers"J. Chem. Phys.. 115. 1052-1059 (2001)

[Publications] M.Nakano: "Third-order nonlinear optical properties of fractal-and nonfractal-structured oligomers modeled after dendron parts in Cayley-tree-type dendrimers"J. Chem. Phys.. 115. 6780-6784 (2001)

[Publications] M.Nakano: "Theoretical study on the polarizabilities of two-dimensionally-grown dendritic molecular aggregates : the architecture-and size-dependency"Mol. Cryst. Liq. Cryst.. 371. 215-218 (2001)

[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.. 371. 261-264 (2001)

[Publications] M.Takahata: "Exciton migration dynamics of D58-like dendritic molecular aggregate"Mol. Cryst. Liq. Cryst.. 371. 345-348 (2001)

[Publications] M.Nakano: "Polarizabilities (α) of Dendritic Molecular Aggregates : Visualization of Intermolecular-Interaction and Damping Effects on α"J. Phys. Chem. A. 105. 5473-5478 (2001)

中野雅由大阪大学, 大学院・理学研究科, 講師 (80252568)