On the de Sitter swampland criterion

By D. Andriot. Physics Letters B, 2018

212 citations recorded by the source corpus.

Abstract A new swampland criterion has recently been proposed. As a consequence, it forbids the existence of de Sitter solutions in a low energy effective theory of a quantum gravity. However, there exist classical de Sitter solutions of ten-dimensional (10d) type II supergravities, even though they are unstable. This appears at first sight in contradiction with the criterion. Beyond possible doubts on the validity of these solutions, we propose two answers to this apparent puzzle. A first possibility is that the known 10d solutions always exhibit an energy scale of order or higher than a Kaluza–Klein scale, as we argue. A corresponding 4d low energy effective theory would then differ from the usual consistent truncations, and as we explain, would not admit a de Sitter solution. This would reconcile the existence of these 10d de Sitter solutions with the 4d criterion. A second, alternative possibility is to have a refined swampland criterion, that we propose. It forbids to have both the existence and the stability of a de Sitter solution, while unstable solutions are still allowed.

Subfields: Astronomy and Astrophysics, Nuclear and High Energy Physics, Statistical and Nonlinear Physics

View Paper: https://www.semanticscholar.org/paper/a2a8cdfb4dc945ad1c49fc05124619143d0c1b01

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In Astronomy and Astrophysics

1. Eran Palti
2. M. Graña
3. Anshuman Maharana
4. M. Cicoli
5. F. Quevedo
6. Alvaro Herr'aez
7. Frederik Denef
8. T. Wrase

In Nuclear and High Energy Physics

1. Eran Palti
2. Anshuman Maharana
3. M. Graña
4. F. Quevedo
5. M. Cicoli
6. Frederik Denef
7. C. Vafa
8. Liam McAllister

In Statistical and Nonlinear Physics

1. Eran Palti
2. M. Graña
3. Alvaro Herr'aez
4. Frederik Denef
5. C. Vafa
6. M. Cicoli
7. Anshuman Maharana
8. F. Quevedo

Citations in the corpus

• Bounds on slow roll and the de Sitter Swampland (2018, background): “The paper [25] was the first to note the tension of the [17] conjecture with the existence of tachyonic de Sitter constructions, it also suggested a few different ways to evade the tension.”
• The Swampland: Introduction and Review (2019, background): “There are also other proposed refinements of the de Sitter conjecture [433–438].”
• De Sitter vs Quintessence in String Theory (2018, background): “Hence this case would violate the swampland conjecture (1) but it would still be allowed by a refined conjecture which does not exclude dS maxima.[10] Considerations of ultra-light axions corresponding to a quintessence field have been made in several recent studies.”
• Distance and de Sitter conjectures on the Swampland (2018, unknown): “[13] D. Andriot (2018), arXiv:1807.09698.”
• The Swampland Conjectures: A Bridge from Quantum Gravity to Particle Physics (2021, background): “Other remarkable and more recent examples of such conjectures are the Weak Gravity Conjecture [3] and the (refined) de Sitter swampland conjecture [4–6] (see also [7,8]).”
• Trans-Planckian Censorship and the Swampland (2019, methodology): “There have been refinements of this proposal suggested in [2–7].”
• de Sitter swampland conjecture and the Higgs potential (2018, result): “be interesting to explore this further. A natural question is whether the decoupled Higgs + quintessence model is consistent with recent speculations on modications of the conjecture. For example in [35,38] it was proposed to allow small or vanishing rst derivatives of the potential in regions where”