Theoretical study of quantum transport in low-dimensional electron systems, full counting statistics and quantum entanglement
| Project/Area Number |
19740189
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Single-year Grants |
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| Research Field |
Condensed matter physics I
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| Research Institution | Tohoku University (2008-2010)
The University of Tokyo (2007) |
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Principal Investigator |
IMURA Ken-ichiro (IMURA Ken-Ichiro) Tohoku University, 先端物質科学研究科, 助教 (90391870)
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| Project Period (FY) |
2007 – 2010
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| Project Status |
Completed (Fiscal Year 2010)
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| Budget Amount *help |
¥3,920,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥720,000)
Fiscal Year 2010: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2009: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2008: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2007: ¥800,000 (Direct Cost: ¥800,000)
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| Keywords | メゾスコピック系 / 局在 / トポロジカル絶縁体 / Anderson局在 / グラフェン / スピンホール効果 / Berry位相 / スピントロニクス / 完全計数統計 / 量子ドット / 単一分子伝導 / スピンゆらぎ / 朝永ラッティンジャー液体 / 不純物問題 |
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| Research Abstract |
Topological insulator (e.g., a quantum Hall state under a high magnetic field) has a seemingly "counterintuitive" property of being insulating in the bulk, but metallic on its surface. Its Z2 version, the Z2 topological insulator realizes such situation without magnetic field, i.e., without breaking time-reversal symmetry. I have been working on and uncovering various unexpected properties of this Z2 topological insulator, e.g., its robustness against disorder, its transportb characteristics at the interface, the spectrum and localizability of its gapless surface states, etc.
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Report
(6 results)
Research Products
(80 results)
