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On scale-separated supersymmetric AdS$_2$ flux vacua
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abstract
We argue that scale-separated AdS$_2$ vacua with at least two preserved supercharges cannot arise from flux compactifications in a regime of computational control. We deduce this by showing that the AdS$_2$ scale is parametrically of the same order as the tension of a fundamental BPS domain wall, which provides an upper bound on the UV cutoff. Since the latter does not need to be associated to any geometric scale, the argument excludes scale separation in a broader sense than what commonly considered. Our claim is exemplified by a bottom-up 2D supergravity analysis as well as top-down models from Type II flux compactifications.
Forward citations
Cited by 3 Pith papers
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Banks-Zaks Stabilisation of Non-SUSY Strings
In non-supersymmetric strings, scale-separated AdS vacua can form when the accidentally small one-loop vacuum energy from massive states balances the two-loop Casimir energy of massless states, a Banks-Zaks-like fixed point.
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Integer dual dimensions in scale-separated AdS$_3$ from massive IIA
Massive IIA flux compactifications on singular and Joyce G2 orbifolds yield scale-separated AdS3 vacua whose dual operator dimensions are integer up to parametrically small corrections.
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