Workshop on Holography and Dense Matter 2026

Liste des Contributions

7. Quark flavors in holographic QCD and the critical point

Matti Jarvinen

09/09/2026 09:40

give an overview of recent progress in implementing quark flavors and the strange quark mass in the holographic V-QCD model. The model, including its flavor dependence, is pinned down by a detailed comparison with (N_f=2+1) flavor lattice QCD results for the equation of state and quark number susceptibilities at small chemical potentials. Taking into account the flavor dependence and the...

5. Near-extremal holographic correlators

Blaise Gouteraux

09/09/2026 11:00

Near-extremal black holes with an AdS2 throat are of great interest in
string theory and in holography due to their ubiquity as classical
gravitational saddles. The emergent SL(2,R) symmetry associated to the
throat plays an important role in their low-temperature physics. In this
talk, I will describe recent progress on analytically computing
holographic correlators in black hole...

6. Effective and holographic description of fluctuations in first order phase transitions

Carlos Hoyos Badajos

09/09/2026 14:00

When fluctuations are suppressed in first order phase transitions, bubble nucleation may be too slow to complete the transition, and the system may explore configurations beyond stable and metastable states. The system can exhibit qualitative differences in thermodynamic and dynamic properties depending on the strength of the coupling, or more precisely, on the number of degrees of freedom...

10. Flavor current correlators at finite isospin density: non-Abelian hydrodynamics and quasinormal modes

Andrea Olzi

09/09/2026 14:50

We study flavor current correlators in strongly coupled matter at finite quark and isospin chemical potentials using holography. Finite isospin density qualitatively modifies the low-energy dynamics of charged currents, combining diffusion with flavor precession. We analyze the corresponding quasinormal-mode spectrum and its interplay with the infrared modes associated with the emergent AdS_2...

1. Self-sustained, out-of-equilibrium inflation

Jorge Casalderrey Solana

10/09/2026 09:00

We use holography to study dS-invariant states of non-conformal, strongly coupled quantum field theories in four-dimensional de Sitter space. We show that out-of-equilibrium effects can sustain exponential inflation within the regime of validity of semiclassical gravity, $H \ll M \ll M_{\text{sp}}$, where $H$ is the Hubble parameter, $M$ is the QFT characteristic scale, $M_{\text{sp}} = M_p /...

9. Gravitational Duals from Equations of State

Pau Sole Villaro

10/09/2026 10:10

12. Non-conformal obstructions to bubble expansion

Mikel Sanchez Garitaonandia

10/09/2026 11:00

The hydrodynamics of expanding bubbles plays an important role in the study of gravitational wave emission from first-order phase transitions. It determines the possible expansion types and provides an estimate of the energy available for gravitational wave emission. By interpolating between electroweak- and QCD-like transitions, I will investigate the hydrodynamics of expanding bubbles in...

3. Dense QCD in Neutron Stars: Twin Stars, Maximum Compactness, and Curvature

Christian Ecker

10/09/2026 14:00

I will discuss three recent model-agnostic studies of dense QCD in neutron stars, combining constraints from nuclear theory, perturbative QCD, and multimessenger observations.
First, I will show that twin-star solutions are strongly disfavored by current data. The few surviving cases require highly fine-tuned EOS behavior and do not support the standard interpretation of twin stars as a...

15. From pQCD to neutron-star cores: recent advances in equation-of-state inference

Aleksi Vuorinen

10/09/2026 14:50

I will discuss recent developments in high-order
perturbative QCD calculations at high baryon density. These efforts have
now reached the full next-to-next-to-next-to-leading order (N3LO) for
the pressure of cold and dense QED matter and are approaching the same
order for cold quark matter. The latter result is expected to
substantially improve theoretical control over the high-density...

8. Tour de Holography: From c-theorems to spacetime reconstruction

Niko Jokela

10/09/2026 16:10

13. Nuclear chiral density wave from field theory and holography

Andreas Schmitt

11/09/2026 09:00

Cold and dense QCD matter may break rotational invariance spontaneously. One anisotropic candidate phase is the chiral density wave, where the chiral condensate oscillates between scalar and pseudoscalar sectors. I will present results from a nucleon-meson model that allows for a chiral phase transition. Taking into account the conditions in the interior of neutron stars and constraints from...

2. Bubble Dynamics in Superheated Transitions

Aldo Lorenzo Cotrone

11/09/2026 10:10

First order phase transitions in superheated systems could be
relevant in cosmological contexts and in neutron star mergers. I will
discuss the bubble dynamics in a chiral symmetry restoring superheated
transition in the Witten-Sakai-Sugimoto holographic model. I will show
how to estimate the bubble nucleation rate and the bubble terminal
velocity at zero chemical potential, and conclude...

4. Learning quark-gluon plasma properties holographically with neural ODEs

Song He

11/09/2026 11:00

We use neural ODEs and state-of-the-art lattice QCD thermodynamics to calibrate a holographic Einstein-Maxwell-Dilaton model with Gauss-Bonnet corrections. The model quantitatively reproduces the equation of state at zero and finite baryon chemical potential and predicts the phase structure in the T-\mu_B plane, a temperature-dependent, and a peaked, while remaining consistent with...

11. Holographic baryons in V-QCD and Tachyon-Chern-Simons action

Jean-Loup Raymond

11/09/2026 14:00

Chern-Simons terms are necessary to reproduce global flavor anomalies in holographic models of QCD. They are also required to model holographic baryons. We will present how the Chern-Simons action must be generalized in the presence of a bulk tachyon field (dual to the quark bilinear), extending earlier work restricted to flavor-independent quark masses. We will then extend recent work about...

14. Beyond Quasinormal Modes: A Nonlinear Late‑Time Attractor for Black Branes and Viscous Fluids

HaoTian Sun

11/09/2026 14:50