Supergravity 2025

Contribution List

22. Welcome

16/09/2025, 09:25

2. Non-relativistic p-brane limits of supergravity

Bergshoeff

16/09/2025, 09:30

I will discuss so-called non-relativistic p-brane limits of (the bosonic part)
of supergravity in diverse dimensions that lead to a generalized Newton-Cartan gravity
with a Newton potential that satisfies a Poisson equation in the directions transverse to
thep-brane. Iwilldiscussafewgeneralizationsthatmakecontactwithboth(thebosonic
part of) eleven-dimensional supergravity and...

3. E8 families from exceptional invariants to Painlevé magics via supergravities

Julia

16/09/2025, 10:50

4. N=2 Supergravity and the Swampland

Vandoren

16/09/2025, 11:40

We discuss N=2 supergravity theories in four dimensions and connect it with
the swampland program and the distance conjectures. Examples with both vector mul-
tiplets and hypermultiplets will be discussed. An interesting new class of models arises
from freely acting orbifolds in string theory.

6. The surprising structure of non-relativistic 11D supergravity

Rosseel

16/09/2025, 14:00

In this talk, I will outline the construction of a non-relativistic limit of 11-
dimensional supergravity that leads to a theory with an underlying membrane Newton-
Cartan geometry. I will argue that consistency of the non-relativistic limit requires the
imposition of constraints, requiring that certain bosonic and fermionic torsions and cur-
vatures vanish. I will show that in one version...

7. Aspects of gauge-strings duality

Nunez

16/09/2025, 14:50

I will discuss recent progress in the duality between gauge fields and strings,
with an emphasis on the Supergravity side of things. The material is taken from the
papers I wrote in the last year. I hope to make the presentation accessible to members
of the audience with different technical expertise.

8. Gong Show and Poster Session

16/09/2025, 16:10

9. Surprises from Non-Supersymmetric Strings

Sagnotti

17/09/2025, 09:30

10. AdS3/CFT2 and defect CFTs

Lozano

17/09/2025, 10:50

I will discuss recent interpretations of AdS3 solutions as holographic duals
of surface defect CFTs. One solution will be interpreted as an extension of ABJM
to the massive case, in which one of the external directions becomes an energy scale
and generates a flow towards an AdS3 space. A second solution will be related to
surface defects embedded in 6d (1,0) CFTs living in D6-NS5-D8 brane...

11. Thermodynamics of near-extreme rotating black holes

Toldo

17/09/2025, 11:40

From the perspective of classical gravity, a black hole is the simplest object
we know of. At the same time, it possesses huge entropy, hinting at an incredibly com-
plex microstructure: understanding this fact falls in the realm of quantum gravity. In
this talk I will review recent results concerning the microscopics and the thermody-
namics of near-extreme black holes in asymptotically...

12. On non-supersymmetric vacua in string theory

Tomasiello

17/09/2025, 14:00

I will discuss new classes of supersymmetry-breaking AdS vacua in string
theory. In the first part, using calibrations, I will obtain type II vacua that enjoy partial
or total protection from decays mediated by D-brane bubbles. In the second, I will work
in non-supersymmetric heterotic theory; I will outline a method to obtain solutions on
G/H coset spaces, with H-valued gauge field, and...

13. Supergravity in one dimension

Samtleben

17/09/2025, 14:50

A particularly interesting corner of the holographic dualities is the corre-
spondence between the backgrounds of Dp-branes and their non-conformal field theory
duals. Extrapolating this correspondence to the extremal case of p=-1, suggests a holo-
graphic duality for the IKKT matrix model. The dual D-instanton background is a
half-supersymmetric BPS solution of Euclidean IIB supergravity....

14. Precision Holography for Dp-branes

Bobev

17/09/2025, 16:10

15. Localization in Supergravity

Gauntlett

17/09/2025, 17:00

Important BPS quantities, including central charges, black hole entropy and
the on-shell action, can be computed for supersymmetric solutions of supergravity with-
out ever solving the Einstein equations or the Killing spinor equations. Instead one
exploits the fact that the solutions have a Killing vector and a set of equivariantly closed
forms. This allows one to compute just by...

16. Supergravities I and II and their (enhanced) dualities

Van Proeyen

18/09/2025, 09:30

Combinations of dimensional reduction and dualities will be discussed leading
to type I and type II supergravities in D=4 and D=6 with maximal supersymmetry.
The relations between the different types of supergravity are also connected to choices
of gauge fixing for the representatives of the coset spaces. The preserved manifest global
symmetries differ and this raises questions on gauge...

17. Casimir energy and the stability of supergravity vacua

Dall'Agata

18/09/2025, 10:50

We discuss the perturbative stability of susy breaking Minkowski vacua in
supergravity compactifications on Riemann-flat manifolds.

18. Supergravity from Superstring Field Theory

Hull

18/09/2025, 11:40

A new superstring field theory gives a background independent 2nd-quantised formulation of superstring theory. In particular, it gives a novel formulation of the supergravity action with a democratic action for the RR gauge fields. This involves some novel gravitational couplings and the geometry behind these will be discussed.

19. Scale-separated AdS3 flux vacua of type IIB

Guarino

18/09/2025, 14:00

The existence of AdS/CFT pairs with scale separation remains an open question, with no explicit examples known to date and doubts raised about their very possibility. In this talk, I will present the first examples of type IIB AdS3​ flux vacua that exhibit parametrically-controlled scale separation. Remarkably, these solutions come equipped with integer-valued conformal dimensions for the...

20. Supergravity, String Theory and Homotopy Algebras

Hohm

18/09/2025, 14:50

I give an overview of homotopy algebras such as L∞ algebras as a tool for su-
pergravity and other theories. Possible applications include: i)a first-principle derivation
of “double copy", which relates, for instance, N=4 super-Yang-Mills to N=8 supergrav-
ity in D=4; ii) the use of homotopy transfer to transport the Kaluza-Klein spectrum of
exceptional field theory or supergravity on AdS...

21. From Supergravity to Machine Learning: a Mathematical Adventure

Frè

18/09/2025, 16:10

In this talk starting from a critical analysis of the existing Neural Networks we illustrate their geometrical reformulation that cures their original sin, namely the use of ad-hoc point-wise activation functions, that are contradictory with covariance and with the supposedly vector space structure of the hidden layers. Starting from first principles, namely the need of a distance function and...

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