Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Coherent `ab' and `c' transport theory of high-$T_{c}$ cuprates   We propose a microscopic theory of the `$c$'-axis and in-plane transport of
copper oxides based on the bipolaron theory and the Boltzmann kinetics. The
fundamental relationship between the anisotropy and the spin susceptibility is
derived, $\rho_{c}(T,x)/\rho_{ab}(T,x)\sim x/\sqrt{T}\chi_{s}(T,x)$. The
temperature $(T)$ and doping $(x)$ dependence of the in-plane, $\rho_{ab}$ and
out-of-plane, $\rho_{c}$ resistivity and the spin susceptibility, $\chi_{s}$
are found in a remarkable agreement with the experimental data in underdoped,
optimally and overdoped $La_{2-x}Sr_{x}CuO_{4}$ for the entire temperature
regime from $T_{c}$ up to $800K$. The normal state gap is explained and its
doping and temperature dependence is clarified.

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The categories of this paper are: solv-int
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The categories of this paper are: econ
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The categories of this paper are: mtrl-th
7
The categories of this paper are: hep-th
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The categories of this paper are: hep-lat
15
The categories of this paper are: nucl-ex
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The categories of this paper are: math-ph
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The categories of this paper are: chao-dyn
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The categories of this paper are: ao-sci
8
The categories of this paper are: hep-ex
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The categories of this paper are: eess
0
The categories of this paper are: hep-ph
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The categories of this paper are: patt-sol
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The categories of this paper are: q-alg
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The categories of this paper are: bayes-an
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The categories of this paper are: acc-phys