most citedEuclidean AdS wormholes and gravitational instantons in the Einstein-Skyrme theory

7 citations · 14 across the 7 of their papers we have counts for

collaborators

9 papers

hep-th2026

Gravitational Cheshire effect from Yang-Mills instantons

Borja Diez

We show that the dimensional reduction of four-dimensional Yang-Mills instantons naturally gives rise to nontrivial matter configurations in three dimensions exhibiting an unusual…

hep-th2026

Thermodynamics of Lorentzian Taub-NUT spacetimes in Einstein-Gauss-Bonnet AdS gravity

Borja Diez

We study the thermodynamics of Lorentzian Taub-NUT spacetimes in Einstein-Gauss-Bonnet AdS gravity in arbitrary even dimensions, constructed as fibrations over Einstein-Kähl…

gr-qc2026

Hadronic lensing

Fabrizio Canfora, Cristóbal Corral, Borja Diez

We introduce an analytic approach to study gravitational lensing in the presence of a distribution of hadrons. The situation is analogous to the propagation of photons in a medium…

hep-th2026

Merons beyond Yang-Mills theory

Borja Diez, Luis Guajardo

Within the wide variety of topological solitons supported by Yang--Mills theory, merons occupy a particularly distinguished role. Despite their simplicity, they represent genuinely…

hep-th2026

(Super-)renormalizable hairy meronic black holes

Luis Avilés, Borja Diez

We construct an analytical black hole solution in the Einstein-Maxwell-Yang-Mills theory with a conformally coupled scalar field in four dimensions, which generalizes the charged M…

hep-th2025★ 1 cited

Self-dual instantons and gravitating dyons in non-Abelian ModMax theory

Fabrizio Canfora, Cristóbal Corral, Borja Diez +2

Motivated by the recent interest in conformal and duality invariant nonlinear electrodynamics, we study the non-Abelian extension of ModMax electrodynamics. The theory is parameter…

hep-th2025

Nonconformally Ricci-flat instantons in Conformal Gravity with and without nonlinear matter fields

Cristóbal Corral, Borja Diez, Eleftherios Papantonopoulos

In this work, we study nonconformally Ricci-flat gravitational instantons in four-dimensional Conformal Gravity, both in vacuum and in the presence of nonlinear conformal matter. F…

hep-th2025★ 6 cited

Inhomogeneous metrics on complex bundles in Lovelock gravity

Cristóbal Corral, Borja Diez, Daniel Flores-Alfonso +2

We consider Lovelock gravity in arbitrary, even dimensions. We find a large class of new gravitational instantons by considering extended nontrivial circle bundles over Kähler mani…

hep-th2025★ 7 cited

Euclidean AdS wormholes and gravitational instantons in the Einstein-Skyrme theory

Fabrizio Canfora, Cristóbal Corral, Borja Diez

Euclidean AdS wormholes provide a natural setup for studying the AdS/CFT correspondence with multiple boundaries. However, from a bottom-up perspective, they cannot be embedded in…