Swamplandia 2024 - in Bavaria

Liste der Beiträge

2. Welcome

27.05.24, 10:50

1. Matilda Delgado - Global anomalies and Bordism of Non-Supersymmetric Strings

27.05.24, 11:00

Global anomalies and Bordism of Non-Supersymmetric Strings

The three tachyon-free non-supersymmetric string theories in ten dimensions provide a handle on quantum gravity away from the supersymmetric lamppost. However, they have not been shown to be fully consistent; although local anomalies cancel due to versions of the Green-Schwarz mechanism, there could be global anomalies that could...

3. Simon Schreyer - News on the anti-D3-brane uplift

27.05.24, 11:30

News on the anti-D3-brane uplift

For the anti-D3-brane uplift one places p anti-D3-branes at the tip of a Klebanov-Strassler (KS) throat. This setup can only contribute positively to the vacuum energy if it is stable against the so called KPV decay where the anti-branes puff up into an NS5-brane which subsequently annihilates against flux and forms a supersymmetric state at zero vacuum...

4. Bruno de Luca - Can you hear the Planck mass?

27.05.24, 13:30

Can you hear the Planck mass?

Upon compactification of higher-dimensional theories of gravity, a spectrum of spin 2 particles (Kaluza-Klein modes) is generated, whose masses depend on the details of warp factor and of the internal geometry. For the Laplacian of an n-Riemannian manifold X, the Weyl law states that the k-th eigenvalue is asymptotically proportional to (k/V)^{2/n}, where V is...

5. Damian van de Heisteeg - Landscapes of Moduli Spaces and Exact Flux Vacua

27.05.24, 14:00

Landscapes of Moduli Spaces and Exact Flux Vacua

In this talk we explore the landscape of F-theory compactifications from two directions. In the first approach, we consider the simplest complex structure moduli space, the thrice-punctured sphere, and enumerate all corresponding Calabi-Yau fourfolds by monodromy considerations. In the second, we explore the landscape of flux vacua with a...

6. Hector Parra de Freitas - T-duality for non-critical heterotic strings

27.05.24, 14:30

T-duality for non-critical heterotic strings

Non-critical heterotic strings with linear dilaton backgrounds are formally related to their critical non-supersymmetric counterparts. I will show that their T-duality symmetry groups upon circle compactification are of the form O(1,12+D/2,Z) for even dimension D. I will explain how the global structure of each moduli space is encoded in an...

7. Amineh Mohseni - Measuring Distances in the Quantum Gravity Landscape

27.05.24, 15:30

Measuring Distances in the Quantum Gravity Landscape

We propose a notion of distance between vacua in the theory of a scalar field phi with scalar potential V(phi) coupled to gravity. We propose the normalized tension of domain wall connecting the vacua as a physically motivated one, where the normalization is relative to the local energy density. We show this definition reproduces the...

8. Alvaro Herraez - On the origin of species thermodynamics and a black hole-tower correspondence

27.05.24, 16:00

On the origin of species thermodynamics and a black hole-tower correspondence

We begin by studying configurations of particles at equilibrium at a temperature T inside a box in the presence of towers of species. By playing with the control parameters, we can obtain configurations that avoid gravitational collapse and fulfill the Covariant Entropy Bound (CEB). These interpolate between the...

10. Alessandro Mininno - The Minimal Weak Gravity Conjecture

28.05.24, 09:00

The Minimal Weak Gravity Conjecture

We examine the minimal constraints imposed by the Weak Gravity Conjecture (WGC) on the particle spectrum of quantum gravity theories. Recently, we argued for the existence of a minimal radius in circle reductions of generic quantum gravity theories. Consequently, whenever a minimal radius exists and the WGC is satisfied at the particle level below the...

11. Veronica Collazuol - Symmetric moduli spaces: boundaries, geodesics and the distance conjecture

28.05.24, 09:30

Symmetric moduli spaces: boundaries, geodesics and the distance conjecture

In the context of the Swampland program, the Distance Conjecture predicts an infinite tower of states becoming massless at infinite distance in moduli spaces of string compactifications. This is widely believed to be a general feature of quantum gravity, but it is difficult to prove in full generality. On the other...

12. Georges Obied - Festina Lente and branes

28.05.24, 10:00

Festina Lente and branes

Extended objects are ubiquitous in string theory where they have special properties. Outside of string theory, there are relatively few insights into the nature of extended objects that are allowed by quantum gravity. In this talk, using the Festina Lente conjecture, I will argue for new universal bounds on the tension of branes coupled to gauge fields in de Sitter...

13. Jeroen Monnee - Complexity of the Flux Landscape

28.05.24, 11:00

Complexity of the Flux Landscape

The landscape of F-theory flux compactifications is expected to be remarkably constrained due to deep insights in Hodge theory and tame geometry. In this talk, I will first recall known finiteness theorems for the landscape of self-dual flux vacua and provide additional insights on this matter using asymptotic Hodge theory. In the remainder of the talk, I...

14. Andriana Makridou - Dynamical Cobordism and Codimension-2 End-of-the-world Branes

28.05.24, 11:30

Dynamical Cobordism and Codimension-2 End-of-the-world Branes

Dynamical Cobordism is an implementation of the Cobordism Conjecture in the framework of Effective Field Theory, with End-of-the-World (ETW) Branes realized as codimension-1 solutions of the EFT becoming singular at infinite field distance and finite spacetime distance. In this talk, I will describe how codimension-2 ETW branes...

15. Rafael Alvarez-Garcia - Non-minimal Elliptic Threefolds and the Distance Conjecture

29.05.24, 09:00

Non-minimal Elliptic Threefolds and the Distance Conjecture

We analyze infinite-distance limits in the complex structure moduli space of six-dimensional F-theory, providing an algebro-geometric classification and a physical interpretation. From the point of view of the Swampland Program, the motivation is to understand the fate of open-moduli infinite-distance limits in relation with the...

16. Björn Friedrich - An EFT for end-of-the-world branes and the creation of universes from nothing

29.05.24, 09:30

An EFT for end-of-the-world branes and the creation of universes from nothing

End-of-the-world (ETW) branes are expected to be a generic feature of string theory and may play an important role in cosmology. We explain how ETW branes can be described from a 4d EFT point of view and describe how their presence influences predictions in cosmology. We explicitly present a proposal for the...

17. Jose Calderon-Infante - Tensionless Strings Limits in 4d Conformal Manifolds

29.05.24, 10:00

Tensionless Strings Limits in 4d Conformal Manifolds

Three distinct infinite distance limits appear in the conformal manifolds of four-dimensional superconformal field theories admitting large N limit. They are distinguished by the CFT Distance Conjecture parameter, controlling the exponential behavior with the distance of the anomalous dimension of higher-spin currents. Borrowing lessons...

18. Naomi Gendler - Axions in the Dark Dimension

29.05.24, 11:00

Axions in the Dark Dimension

19. Max Hübner - Generalized Symmetries and Global Models

29.05.24, 11:30

Generalized Symmetries and Global Models

We consider compactifications of M-theory on purely geometric backgrounds. In many cases singularities of such top-down constructions support QFT degrees of freedom. Symmetries emerge when isolating these degrees of freedom via local limits. Conversely, completing a local model into a global model symmetries are broken or gauged. We explicitly...

20. Houri Tarazi - New Non-supersymmetric Tachyon-Free Strings

29.05.24, 13:30

New Non-supersymmetric Tachyon-Free Strings

In four decades of string theory research only a handful of examples of non-supersymmetric, tachyon-free string models with only one neutral scalar at tree level are known. In this talk I will present new non-supersymmetric and tachyon-free string theories using asymmetric orbifolds that serve as the lower-dimensional counterparts to the...

21. Muthusamy Rajaguru - Stabilizing Massless Fields in Non-Geometric Landau-Ginzburg Models

29.05.24, 14:00

Stabilizing Massless Fields in Non-Geometric Landau-Ginzburg Models.

The tadpole conjecture constrains the number of moduli that can be stabilized with fluxes in F-theory and type IIB flux compactifications. In this talk, I will discuss ongoing work that aims to test this assertion in non-geometric type IIB flux compactifications with no Kähler moduli. In particular, I will restrict to...

23. Nicolo Petri - Exploring the AdS conjecture: a positive metric over DGKT vacua

29.05.24, 15:00

Exploring the AdS conjecture: a positive metric over DGKT vacua

The AdS Distance conjecture proposes a notion of distance between AdS vacua in quantum gravity. Although the need for such a notion is evident, defining and computing this distance is challenging, both conceptually and technically. In my talk, I will address this challenge by proposing a consistent framework for defining and...

24. Ivano Basile - Decoding Dualities at Divergent Distance

29.05.24, 15:30

Decoding Dualities at Divergent Distance

String theory is quite picky: the only weakly coupled degrees of freedom that arise beyond effective quantum fields are encoded in a unique critical string, and dualities relate its various limits. Can we bootstrap this rigidity from general quantum gravity ideas? Combining insights on information theory, black holes and scattering amplitudes we...

22. John Stout

9. Niccolo Cribiori