Diffusion of a Quantum Particle in a Fluctuating Medium
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- Inaba Yutaka
- Department of Physics, The University of Tokyo
書誌事項
- タイトル別名
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- Diffusion of a Quantum Particle in a Fl
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説明
Quantum motion of a particle in a fluctuating lattice is studied on the basis of a time-dependent Hamiltonian with site energies being randomly modulated by stochastic noises. The case of the two-state jump noise is studied in details. It is found that the particle moves diffusively on a long time scale. When the noise has a non-white spectrum, the diffusion constant is substantially enhanced in comparison with the white noise limit owing to the local coherence of the wavefunction of the particle.<BR>A numerical study is also carried out for one-dimensional cases. The analytical result is in rough agreement with the numerical calculation.
収録刊行物
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- Ｊｏｕｒｎａｌ ｏｆ ｔｈｅ Ｐｈｙｓｉｃａｌ Ｓｏｃｉｅｔｙ ｏｆ Ｊａｐａｎ
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Ｊｏｕｒｎａｌ ｏｆ ｔｈｅ Ｐｈｙｓｉｃａｌ Ｓｏｃｉｅｔｙ ｏｆ Ｊａｐａｎ 50 (8), 2473-2480, 1981
一般社団法人 日本物理学会
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詳細情報 詳細情報について
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- CRID
- 1390282679161903360
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- NII論文ID
- 210000089534
- 110001975857
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- NII書誌ID
- AA00704814
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- BIBCODE
- 1981JPSJ...50.2473I
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- COI
- 1:CAS:528:DyaL3MXlt1Wgu7o%3D
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- ISSN
- 13474073
- 00319015
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- NDL書誌ID
- 2322281
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- 本文言語コード
- en
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