Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: De Sitter and Anti-de Sitter branes in self-tuning models   Maximally symmetric curved-brane solutions are studied in dilatonic
braneworld models which realise the self-tuning of the effective
four-dimensional cosmological constant. It is found that no vacua in which the
brane has de Sitter or anti-de Sitter geometry exist, unless one modifies the
near-boundary asymptotics of the bulk fields. In the holographic dual picture,
this corresponds to coupling the UV CFT to a curved metric (possibly with a
defect). Alternatively, the same may be achieved in a flat-space QFT with
suitable variable scalar sources. With these ingredients, it is found that
maximally symmetric, positive and negative curvature solutions with a
stabilised brane position generically exist. The space of such solutions is
studied in two different types of realisations of the self-tuning framework. In
some regimes we observe a large hierarchy between the curvature on the brane
and the boundary UV CFT curvature. This is a dynamical effect due to the
self-stabilisation mechanism. This setup provides an alternative route to
realising de Sitter space in string theory.

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The categories of this paper are: patt-sol
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The categories of this paper are: hep-lat
2
The categories of this paper are: math
3
The categories of this paper are: physics
29
The categories of this paper are: funct-an
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The categories of this paper are: adap-org
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The categories of this paper are: hep-ex
1
The categories of this paper are: cs
20
The categories of this paper are: acc-phys
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The categories of this paper are: nucl-ex
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The categories of this paper are: quant-ph
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The categories of this paper are: nucl-th
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The categories of this paper are: econ
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The categories of this paper are: astro-ph
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The categories of this paper are: bayes-an
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The categories of this paper are: eess