| Project/Area Number |
25800176
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Multi-year Fund |
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| Research Field |
Condensed matter physics I
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| Research Institution | Tokyo Institute of Technology |
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Principal Investigator |
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| Project Period (FY) |
2013-04-01 – 2015-03-31
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| Project Status |
Completed (Fiscal Year 2014)
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| Budget Amount *help |
¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2014: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Fiscal Year 2013: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
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| Keywords | 量子ホール効果 / 分数電荷準粒子 / 朝永ラッティンジャー液体 / 電流ゆらぎ相関測定 / 電流ゆらぎ相互相関 / 分数統計 |
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| Outline of Final Research Achievements |
We succeeded in developing a high-precision noise cross-correlation measurement system, which is applicable for the shot-noise measurements on solid-state devices placed at very low temperatures. Creation of fractional quasiparticles in a local fractional quantum Hall system embedded in an integer quantum Hall system is detected using the cross-correlation technique. Moreover, energy dissipation in a quantum Hall edge state is measured using the technique in a re-partitioning experiment performed on tunneling quasiparticles. These result encourage us to investigate the fractional statistics of Laughlin quasiparticles in fractional quantum Hall systems.
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