Pith. sign in

REVIEW 2 cited by

Classical de Sitter solutions in three dimensions without tachyons?

Not yet reviewed by Pith; the record is open.

This paper has not been read by Pith yet. Machine review is queued; the pith claim, tier, and objections will appear here once it completes.

SPECIMEN: schema-true, not a live event

T0 review · schema-true

One-sentence machine reading of the paper's core claim.

pith:XXXXXXXX · record.json · timestamp

arxiv 2007.12084 v2 pith:YIACWU3N submitted 2020-07-23 hep-th

classification hep-th
keywords classicalcompactificationshoweversolutionstachyonsabsentalleviateanti-d2
verification ladder T0 review T1 audit T2 compute T3 formal
0 comments
read the original abstract

We continue the study of compactifications of massive IIA supergravity on G2 orientifolds and demonstrate that breaking supersymmetry with anti-D2 and anti-D6 sources leads to 3d theories for which the typical tachyons haunting classical dS solutions can be absent. However for a concrete torus example the meta-stable dS window disappears after a quantization of fluxes and charges. We discuss the prospects of more general G2 compactifications and argue that they could potentially alleviate the tachyon problem by introducing larger tadpole numbers and warped throats. However, exactly those ingredients then seem to push the vacuum towards the brink of perturbative brane-flux decay in the open string sector. This is either a remarkable illustration of the no-dS swampland conjecture or such vacua live in very difficult to control regions of parameter space.

Discussion (0). Sign in to comment.

Forward citations

Cited by 2 Pith papers

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

  1. Warped G$_2$-throats in IIA and uplift dSillusions

    hep-th 2025-05 conditional novelty 6.0 of 10

    Anti-D2 brane uplifting of classical AdS3 vacua in IIA on G2 orientifolds is forbidden by O6 tadpole constraints, so dS3 must rely on quantum corrections to no-scale Minkowski vacua.

  2. Warped G2 throats from deformed conifolds in IIA supergravity

    hep-th 2025-07 conditional novelty 5.0 of 10

    New non-singular IIA solutions with internal space (deformed conifold × S1)/Z2 provide warped G2 throats with finite 4-cycle or 3-cycle at the tip.

Pith tools