Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: The Universal Composite Fermion Hall Conductance at $\nu=1/2$   We show that at electronic filling factor $\nu=1/2$, the lowest Landau level
constraint implies that at any temperature, and in the presence of {\it any}
amount of particle-hole symmetric disorder, the {\it composite fermion} Hall
conductivity is precisely $-e^2/2h$. (The electronic Hall conductivity is
$e^2/2h$.) This is inconsistent with the response of a composite Fermi liquid
in {\it zero} effective magnetic field. We also examine perturbatively the
nature of the putative composite Fermi liquid in the case in which the bare
particles are anyons with ``nearly'' Fermi statistics.

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The categories of this paper are: acc-phys
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The categories of this paper are: hep-lat
10
The categories of this paper are: q-bio
33
The categories of this paper are: plasm-ph
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The categories of this paper are: math
22
The categories of this paper are: chao-dyn
12
The categories of this paper are: nucl-th
8
The categories of this paper are: hep-ex
37
The categories of this paper are: supr-con
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The categories of this paper are: mtrl-th
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The categories of this paper are: q-alg
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The categories of this paper are: gr-qc
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The categories of this paper are: adap-org
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The categories of this paper are: alg-geom
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The categories of this paper are: nlin
1
The categories of this paper are: cs