Skymions and Quantum Hall Ferromagnets in Improved Composite-Boson Theory
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- Ezawa Zyun F.
- Department of Physics, Tohoku University, Sendai 980–8578
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- Sasaki Kenichi
- Department of Physics, Tohoku University, Sendai 980–8578
書誌事項
- タイトル別名
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- Skyrmions and Quantum Hall Ferromagnets in Improved Composite-Boson Theory.
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抄録
An improved composite-boson theory of quantum Hall ferromagnets is proposed.It is tightly related with the microscopic wave-function theory. Thecharacteristic feature is that the field operator describes solely thephysical degrees of freedom representing the deviation from the groundstate.It presents a powerful tool to analyze excited states within the lowest Landau level.Excitations include a Goldstone mode and nonlocal topological solitons.Solitons are vortices and Skyrmions carrying the U(1) and SU(2) topologicalcharges, respectively. Their classical configurations are derived fromtheirmicroscopic wave functions. The activation energy of one Skyrmion isestimated, which explains experimental data remarkably well.
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 68 (2), 576-585, 1999
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
- 1390282679158268544
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- NII論文ID
- 110001978692
- 210000102089
- 130004537034
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- NII書誌ID
- AA00704814
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- BIBCODE
- 1999JPSJ...68..576E
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- ISSN
- 13474073
- 00319015
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- NDL書誌ID
- 4664542
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- NDL
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- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可