De Sitter vacua — when are ‘subleading corrections’ really subleading?
Jun 12, 2023
Citations per year
Abstract: (Springer)
We consider various string-loop, warping and curvature corrections that are expected to appear in type IIB moduli stabilisation scenarios. It has recently been argued, in the context of strongly-warped LVS de Sitter vacua, that it is impossible to achieve parametric suppression in all of these corrections simultaneously [1]. We investigate corrections in the context of the recently discovered weakly-warped LVS de Sitter vacua, which represent a distinct branch of solutions in type IIB flux compactifications. The weakly-warped solution is supported by small conifold flux numbers MK ≲ 32, but still requires a large flux contribution to the D3-tadpole, now from the bulk. Warping corrections become less problematic, and some corrections even help to reach the weakly-warped regime of parameter space. Other corrections continue to be dangerous and would require numerical coefficients to be computed — and found to be small — in order not to destroy the consistency of the weakly-warped LVS de Sitter solution. We motivate why this may be possible.Note:
- 35 pages, 5 figures and 3 tables; matches published version
- Flux Compactifications
- Superstring Vacua
- vacuum state: de Sitter
- moduli: stability
- curvature: correction
- compactification: flux
- conifold
- parametric
- suppression
References(75)
Figures(5)
- [2]
- [3]
- [4]
- [5]
- [6]
- [7]
- [8]
- [9]
- [10]
- [11]
- [12]
- [13]
- [14]
- [16]
- [17]
- [18]
- [19]
- [20]
- [23]
- [25]