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2014 Fiscal Year Final Research Report

Fractional statistics of Laughlin quasiparticles in a fractional quantum Hall system

Research Project

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Project/Area Number 25800176
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeMulti-year Fund
Research Field Condensed matter physics I
Research InstitutionTokyo Institute of Technology

Principal Investigator

HASHISAKA Masayuki  東京工業大学, 理工学研究科, 助教 (80550649)

Project Period (FY) 2013-04-01 – 2015-03-31
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
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.

Free Research Field

量子輸送現象

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Published: 2016-06-03  

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