Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Hidden conformal symmetry of extremal Kaluza-Klein black hole in four
  dimensions   We study the hidden conformal symmetry of four-dimensional extremal
Kaluza-Klein black hole. The scalar Laplacian corresponding to the radial
equation in the near-region is rewritten in terms of the $SL(2,\mathbb R)$
quadratic Casimir. Using the first law of black hole thermodynamics, this
symmetry enables us to obtain the conjugate charges for the CFT side. The
real-time correlators are also found to agree with the CFT expectations.

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The categories of this paper are: q-alg
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The categories of this paper are: plasm-ph
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The categories of this paper are: bayes-an
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The categories of this paper are: quant-ph
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The categories of this paper are: stat
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The categories of this paper are: atom-ph
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The categories of this paper are: dg-ga
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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: eess
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The categories of this paper are: acc-phys
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The categories of this paper are: hep-lat
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The categories of this paper are: supr-con
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The categories of this paper are: q-bio
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The categories of this paper are: gr-qc
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The categories of this paper are: hep-ex