Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Spin Triplet Superconductivity in Sr2RuO4 due to Orbital and Spin
  Fluctuations: Analysis by Two-Dimensional Renormalization Group Theory   We study the mechanism of the triplet superconductivity in Sr2RuO4 based on
the multiorbital Hubbard model. The electronic states are studied using the
renormalization group method. Thanks to the vertex correction (VC) for the
susceptibility, which is dropped in the mean-field-level approximations, strong
orbital and spin fluctuations at $Q=(2\pi/3,2\pi/3)$ emerge in the quasi
one-dimensional Fermi surfaces composed of $d_{xz}$ and $d_{yz}$ orbitals. Due
to the cooperation of both fluctuations, we obtain the triplet
superconductivity in the $E_u$ representation, in which the superconducting gap
is given by the linear combination of $(\Delta_x(k),\Delta_y(k))=(\sin
3k_x,\sin 3k_y)$. These results are confirmed by a diagrammatic calculation
called the self-consistent VC method.

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The categories of this paper are: plasm-ph
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The categories of this paper are: hep-th
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The categories of this paper are: math-ph
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The categories of this paper are: chem-ph
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The categories of this paper are: adap-org
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The categories of this paper are: nucl-ex
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The categories of this paper are: cs
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The categories of this paper are: q-fin
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The categories of this paper are: dg-ga
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The categories of this paper are: quant-ph
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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: stat
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The categories of this paper are: patt-sol
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The categories of this paper are: supr-con
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The categories of this paper are: hep-lat