The paper claims a spectral gap in the ABJM dual of a 4d four-charge black brane arising from non-commuting limits, and reports an AdS3/BTZ sector after uplift, but the promised Green's function analysis is absent.
Superstars and Giant Gravitons in M-theory
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abstract
Following hep-th/0109127, we show that a certain class of BPS naked singularities (superstars) found in compactifications of M-theory can be interpreted as being composed of giant gravitons. More specifically, we study superstars which are asymptotically AdS_7 x S^4 and AdS_4 x S^7 and show that these field configurations can be interpreted as being sourced by continuous distributions of spherical M2- and M5-branes, respectively, which carry internal momenta and have expanded on the spherical component of the space-time.
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The spectral gap of the ABJM model: A holographic perspective from uplifted higher-dimensional geometries
The paper claims a spectral gap in the ABJM dual of a 4d four-charge black brane arising from non-commuting limits, and reports an AdS3/BTZ sector after uplift, but the promised Green's function analysis is absent.