activity
20222026
most citedAsymptotic Accelerated Expansion in String Theory and the Swampland

43 citations · 49 across the 11 of their papers we have counts for

collaborators

11 papers

hep-th2026

EFT (String) Tower Building

Alessandra Grieco, Ignacio Ruiz, Irene Valenzuela

We develop a bottom-up framework to reconstruct the asymptotic spectrum of light towers in four-dimensional effective field theories directly from their Kähler pote…

hep-th2026

Bordisms between 9d type IIB supergravities and commutator widths of duality groups

Camilo las Heras, Ignacio Ruiz

We study the topological properties of bordisms interpolating between different 9d gauged supergravities obtained from compactification of type IIB string theory on …

hep-th2026

A missing link: Brane networks and the Cobordism Conjecture

Markus Dierigl, Ignacio Ruiz

The absence of global symmetries in a quantum gravity theory often requires the introduction of (new) symmetry-breaking defects, which appear as singular objects in the low-energy…

hep-th2025★ 1 cited

The dark dimension, proton decay, and the length of the M-theory interval

Mario Reig, Ignacio Ruiz

The existence of a large extra dimension in which only gravity propagates would have spectacular consequences for cosmology and laboratory experiments. In the strong coupling limit…

hep-th2025

EFT strings and dualities in 4d

Alessandra Grieco, Ignacio Ruiz, Irene Valenzuela

We investigate the global structure of the states becoming light at perturbative limits of 4d string and M-theory compactifications, identifying the different duali…

hep-th2024★ 2 cited

Morse-Bott inequalities, Topology Change and Cobordisms to Nothing

Ignacio Ruiz

The Cobordism Conjecture predicts spacetime-ending configurations, such as Bubbles of Nothing (BoN), being commonplace. These correspond to vacuum decays in which the compactificat…

hep-th2024

Taxonomy of Infinite Distance Limits

Muldrow Etheredge, Ben Heidenreich, Tom Rudelius +2

The Emergent String Conjecture constrains the possible types of light towers in infinite-distance limits in quantum gravity moduli spaces. In this paper, we use these constraints t…

hep-th2023★ 1 cited

Stringy Evidence for a Universal Pattern at Infinite Distance

Alberto Castellano, Ignacio Ruiz, Irene Valenzuela

Infinite distance limits in the moduli space of a quantum gravity theory are characterized by having infinite towers of states becoming light, as dictated by the Distance Conjectur…

hep-th2023★ 1 cited

A Universal Pattern in Quantum Gravity at Infinite Distance

Alberto Castellano, Ignacio Ruiz, Irene Valenzuela

Quantum gravitational effects become significant at a cut-off species scale that can be much lower than the Planck scale whenever we get a parametrically large number of fields bec…

hep-th2023★ 1 cited

Running Decompactification, Sliding Towers, and the Distance Conjecture

Muldrow Etheredge, Ben Heidenreich, Jacob McNamara +3

We study towers of light particles that appear in infinite-distance limits of moduli spaces of 9-dimensional string theories, some of which notably feature decompac…

hep-th2022★ 43 cited

Asymptotic Accelerated Expansion in String Theory and the Swampland

José Calderón-Infante, Ignacio Ruiz, Irene Valenzuela

We study whether the universal runaway behaviour of stringy scalar potentials towards infinite field distance limits can produce an accelerated expanding cosmology à la quintessenc…