# dS Vacua and the Swampland

## TL;DR

This paper critically examines recent claims that uplift mechanisms prevent de Sitter vacua formation, arguing that such claims are inconclusive and that stable dS vacua remain possible within certain models, challenging the swampland conjecture.

## Contribution

The paper clarifies the limitations of 10d approaches and demonstrates the viability of KKLT and KL models for dS vacua, countering recent swampland conjectures.

## Key findings

- Flattening effects do not universally prevent dS vacua.
- KL racetrack model allows small uplift compatible with weak gravity conjecture.
- The analysis challenges recent swampland conjecture claims.

## Abstract

In this note we revisit some of the recent 10d and 4d arguments suggesting that uplifting of supersymmetric AdS vacua leads to flattening of the potential, preventing formation of dS vacua. We explain why the corresponding 10d approach is inconclusive and requires considerable modifications. We also show that while the flattening effects may occur for some extreme values of the parameters, they do not prevent the formation of dS vacua within the range of validity of the 4d KKLT models. The KL version of the KKLT scenario based on a racetrack superpotential requires parametrically small uplifting, which is not affected by flattening. We show that this scenario is compatible with the weak gravity conjecture for a broad choice of parameters of the KL model. Thus, the results of our analysis do not support the recent swampland conjecture.