Consistent truncation with dilatino condensation on nearly Kähler and Calabi-Yau manifolds

We elaborate on the recent work of Moritz et al. where it is argued that anti‐brane uplifting in KKLT models never leads to dS vacua. This is due to flattening effects in the effective potential found when treating the gaugino condensate energy momentum in ten‐dimensional supergravity. We point out that the Silverstein‐Saltman uplift, which effectively dissolves the anti‐brane in 3‐form fluxes, is a conceptually simpler setting in which flattening effects can be present, without requiring assumptions about UV/IR mixings. Along the way we revise and improve on the arguments of Moritz et al. and discuss various subleties when studying gaugino condensates from a ten‐dimensional point‐of‐view. In particular, the “no dS” argument is slightly weaker and we emphasize a technical loophole that might allow dS vacua. Finally we suggest that AdS vacua which are parametrically controlled from these flattening effects belong to the Swampland. We comment on the relation with the recent refined dS Swampland inequalities.

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“…This resonates well with suggestions that fermion condensate naturally lead to dS vacua. See[51,52] for recent papers on the matter.…”

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confidence: 99%

The Tension between 10D Supergravity and dS Uplifts

Gautason

Hemelryck

Riet

2018

Fortschritte der Physik

116

203

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“…In [20] we presented a universal consistent truncation on Nearly-Kähler and CY manifolds in the presence of dilatino condensates. As it turns out, this consistent truncation captures only part of the universal scalar sector of the N = 2 low-energy effective supergravity obtained from IIA theory compactified on CY threefolds.…”

Section: Consistent Truncationmentioning

confidence: 99%

“…As it turns out, this consistent truncation captures only part of the universal scalar sector of the N = 2 low-energy effective supergravity obtained from IIA theory compactified on CY threefolds. Therefore we must extend the ansatz of [20] to include the "missing" fields and also to take into account the gravitino condensates.…”

Section: Consistent Truncationmentioning

confidence: 99%

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Consistent truncation and de Sitter space from gravitational instantons

Terrisse

Tsimpis

2019

J. High Energ. Phys.

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We construct a four-dimensional consistent truncation to the bosonic part of the universal sector of Calabi-Yau IIA compactification (i.e. the gravity multiplet, one vectormultiplet, and one hypermultiplet) in the presence of background flux and fermionic condensates generated by gravitational instantons. The condensates are controlled by the ratio of the characteristic length of the Calabi-Yau to the string length, and can be fine-tuned to be dominant in a region of large volume and small string coupling. The consistent truncation admits de Sitter solutions supported by the condensates, subject to certain validity conditions that we discuss.

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“…In [30,31] we initiated the study of CT's in the presence of fermionic condensates. As we review in the following, this approach offers a way to fix the dependence of the condensates on the moduli of the theory.…”

Section: Introductionmentioning

confidence: 99%

Consistent truncation on Calabi-Yau and Nearly-Kähler manifolds

Tsimpis¹

2020

Proceedings of Corfu Summer Institute 2019 "School and Workshops on Elementary Particle Physics and Gravity" — PoS(CORFU2019)

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We complete and extend the analysis of arXiv:1903.10504 in several directions: we put the 4d theory, arising from the IIA consistent truncation of the universal sector of Calabi-Yau compactification, in a form manifestly consistent with 4d N = 2 supergravity. We go beyond the universal sector and construct the 4d effective action of IIA compactified on Calabi-Yau's with h 1,1 = 1, h 2,1 ≥ 1, in the presence of background flux and fermionic condensates. For ALE gravitational instantons, we show that the putative quartic gravitino condensate is non-negative, as required for the existence of (formal) de Sitter solutions of the 4d theory. We discuss some of the issues in promoting these formal solutions to full-fledged string theory de Sitter solutions. We also extend the Nearly-Kähler consistent truncation of arXiv:1810.06344 to the complete bosonic sector of one vector multiplet and one hypermultiplet.

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Consistent truncation with dilatino condensation on nearly Kähler and Calabi-Yau manifolds

Cited by 3 publications

References 66 publications

The Tension between 10D Supergravity and dS Uplifts

The Tension between 10D Supergravity and dS Uplifts

Consistent truncation and de Sitter space from gravitational instantons

Consistent truncation on Calabi-Yau and Nearly-Kähler manifolds

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