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Interedge interactions and fixed points at a junction of quantum Hall line junctions

Das, Sourin and Rao, Sumathi and Sen, Diptiman (2006) Interedge interactions and fixed points at a junction of quantum Hall line junctions. In: Physical Review B, 74 (4). 045322 -1-45322-5.

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We show that fixed points (characterized by matrices which specify the splitting of the currents at the junction) can be accessed in a system which contains a junction of three quantum Hall line junctions. For such a junction of fractional quantum Hall edge states, we find that it is possible for both the flower (single droplet) and islands (three droplets) configurations to be stable in an intermediate region, for a range of values of the interedge repulsive interactions. A measurement of the tunneling conductance as a function of the gate voltage controlling interedge repulsions can give a clear experimental signal of this region.

Item Type: Journal Article
Publication: Physical Review B
Publisher: American Physical Society
Additional Information: Copyright of this article belongs to American Physical Society.
Keywords: quantum Hall effect;tunnelling;shot noise.
Department/Centre: Division of Physical & Mathematical Sciences > Centre for High Energy Physics
Date Deposited: 30 Mar 2009 10:20
Last Modified: 19 Sep 2010 04:57
URI: http://eprints.iisc.ac.in/id/eprint/17620

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