| Project/Area Number |
18540246
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Particle/Nuclear/Cosmic ray/Astro physics
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| Research Institution | Tohoku University |
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Principal Investigator |
EZAWA Zyun (EZAWA Zyun F.) Tohoku University, 大学院・理学研究科, 教授 (90133925)
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| Project Period (FY) |
2006 – 2008
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| Project Status |
Completed (Fiscal Year 2008)
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| Budget Amount *help |
¥3,140,000 (Direct Cost: ¥2,600,000、Indirect Cost: ¥540,000)
Fiscal Year 2008: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2007: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2006: ¥800,000 (Direct Cost: ¥800,000)
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| Keywords | 2層量子ホール系 / サインゴードン・ソリトン / スカーミオン / スカーム・ソリトン / トポロジカルソリトン / 量子ホール効果 / 量子位相 / 非可換ソリトン / 非可換空間 / トポロジカル・ソリトン / メロン対 |
|---|
| Research Abstract |
Noncommutative geometry is realized in the quantum Hall (QH) system. We have constructed a microscopic theory of noncommutative skyrmions, which are quasiparticles in the QH system. In the bilayer QH system, parallel magnetic field penetrates between the two layers as sine-Gordon solitons, and forms a soliton lattice beyond the critical point. We have analyzed the scattering of the Hall current against the soliton lattice, which is shown to yields an anomalous resistivity in the QH regime around the critical point and explains the experimental data quite well.
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