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Swampland Conjectures for Strings and Membranes

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arxiv 2006.15154 v2 pith:DYPE5AYA submitted 2020-06-26 hep-th

Swampland Conjectures for Strings and Membranes

classification hep-th
keywords membranesstringsswamplandconjectureobjectsbackreactionconjecturesconstraints
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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abstract

Swampland criteria like the Weak Gravity Conjecture should not only apply to particles, but also to other lower-codimension charged objects in 4d EFTs like strings and membranes. However, the description of the latter is in general subtle due to their large backreaction effects. In the context of 4d $\mathcal{N}=1$ EFTs, we consider $\frac12$BPS strings and membranes which are fundamental, in the sense that they cannot be resolved within the EFT regime. We argue that, if interpreted from the EFT viewpoint, the 4d backreaction of these objects translates into a classical RG flow of their couplings. Constraints on the UV charges and tensions get then translated to constraints on the axionic kinetic terms and scalar potential of the EFT. This uncovers new relations among the Swampland Conjectures, which become interconnected by the physical properties of low-codimension objects. In particular, using that string RG flows describe infinite field distance limits, we show that the WGC for strings implies the Swampland Distance Conjecture. Similarly, WGC-saturating membranes generate a scalar potential satisfying the de Sitter Conjecture.

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Cited by 14 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score.

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    hep-th 2026-05 unverdicted novelty 6.0

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    hep-th 2026-05 unverdicted novelty 5.0

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