Path-integral Monte Carlo study of dynamic response in mesoscopic devices
| Project/Area Number |
21740220
|
|---|
| Research Category |
Grant-in-Aid for Young Scientists (B)
|
| Allocation Type | Single-year Grants |
|---|
| Research Field |
Condensed matter physics I
|
|---|
| Research Institution | The University of Tokyo |
|---|
Principal Investigator |
KATO Takeo 東京大学, 物性研究所, 准教授 (80332956)
|
|---|
| Project Period (FY) |
2009 – 2011
|
| Project Status |
Completed (Fiscal Year 2011)
|
| Budget Amount *help |
¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2011: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2010: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2009: ¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
|
|---|
| Keywords | 物性理論 / メゾスコピック系 / 量子ドット / 量子コンピュータ / 量子細線 |
|---|
| Research Abstract |
Dynamic transport properties in hybrid systems with one-dimensional electrons made by edge states of quantum Hall effect and a quantum dot have been studied theoretically. It has been shown that strong electron-electron interaction causes quantum phase transition and that conventional theory cannot be applied to the resultant state as electron coherence is completely suppressed there. Decoherence effect of electron-electron interaction on single electron injection has also been evaluated. Current correlations in Kondo dots and Onsager's relations extended to non-equilibrium states have also been studied.
|
Report
(4 results)
Research Products
(38 results)
