Orthogonality catastrophe in a composite fermion liquid

Details Orthogonality catastrophe in a composite fermion liquid Orthogonality catastrophe in a composite fermion liquid

1997-11-10

arxiv.org/abs/cond-mat/9711081v1

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

Latex two-column 6 pages including 5 figures

Scientific paper

10.1088/0953-8984/10/27/002

We discuss the emergence of an orthogonality catastrophe in the response of a composite fermion liquid as the filling factor \nu approaches 1/2m, where m=1,2,3.... A tunneling experiment is proposed in which dramatic changes in the I-V characteristic should be observable as \nu is varied. Explicit I-V characteristics calculated within the so-called Modified Random Phase Approximation, are provided for \nu=1/3 -> \nu=1/2.

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