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Phys. Rev. B 45, 9489–9492 (1992)

Conductance through a quantum dot in the fractional quantum Hall regime

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Jari M. Kinaret, Yigal Meir, Ned S. Wingreen, Patrick Lee, and Xiao-Gang Wen
Department of Physics, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139

Received 7 February 1992; published in the issue dated 15 April 1992

We study a parabolic quantum dot in the fractional quantum Hall regime by solving the problem exactly for up to eight electrons at filling factors between 1 and 1/3. Many-body coherence in the fractional regime strongly suppresses the resonant conductance through the dot below the integer-regime values. In particular, we predict that at ν=1/3 all conductance peaks are lowered by a factor of 1/N, and that at ν=2/3 odd and even peaks are suppressed differently.

© 1992 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevB.45.9489
DOI:
10.1103/PhysRevB.45.9489
PACS:
72.20.My, 73.40.Kp, 73.40.Gk, 73.50.Jt