Nonequilibrium Steady States and Current Fluctuation in an AB ring with a Quantum Dot(1)Current topics of quantum chaos in nanosciences, Chaos and Nonlinear Dynamics in Quantum-Mechanical and Macroscopic Systems)
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概要
- 論文の詳細を見る
本研究では、量子ドットとAharonov-Bohmリングを組み合わせた複合系における非平衡定常状態でのFano効果、電流ゆらぎの振る舞いを理論的に調べた。系を流れる電流を導出する際にC^*代数の方法を用い、伝導電子の漸近場を導出し演算子の時間発展を調べ、それをt→∽とすることで非平衡定常状態を厳密に構成した。結果として、我々はFano効果、電流ゆらぎが外部バイアス電圧に強く依存することを示し、更に電流を議論する際には見られなかった干渉効果が電流ゆらぎにおいて重要になることを指摘した。
- 物性研究刊行会の論文
- 2005-06-20
著者
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Takahashi Junko
Department Of Applied Physics School Of Science And Engineering Waseda University
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TASAKI Shuichi
Department of Applied Physics, Waseda University
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Tasaki Shuichi
Department Of Applied Physics School Of Science And Engineering Waseda University
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Tasaki Shuichi
Shibaura Inst. Of Technol. Saitama Jpn
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Tasaki Shuichi
College Of Systems Engineering And Science Shibaura Institute Of Technology
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