Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Incoherent Charge Dynamics in Perovskite Manganese Oxides   A minimal model is proposed for the perovskite manganese oxides showing the
strongly incoherent charge dynamics with a suppressed Drude weight in the
ferromagnetic and metallic phase near the insulator. We investigate a
generalized double-exchange model including three elements; the orbital
degeneracy of $e_g$ conduction bands, the Coulomb interaction and fluctuating
Jahn-Teller distortions. We demonstrate that Lancz$\ddot{\rm o}$s
diagonalization calculations combined with Monte Carlo sampling of the largely
fluctuating lattice distortions result in the optical conductivity which
quantitatively accounts for the experimental indications. It is found that all
the three elements are indispensable to understand the charge dynamics in these
compounds.

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The categories of this paper are: eess
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The categories of this paper are: econ
24
The categories of this paper are: dg-ga
10
The categories of this paper are: q-bio
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The categories of this paper are: hep-lat
29
The categories of this paper are: funct-an
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The categories of this paper are: q-fin
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The categories of this paper are: bayes-an
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The categories of this paper are: alg-geom
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The categories of this paper are: comp-gas
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The categories of this paper are: nucl-th
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The categories of this paper are: stat
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The categories of this paper are: cmp-lg
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The categories of this paper are: nlin
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The categories of this paper are: math-ph
5
The categories of this paper are: gr-qc