Publications

2026

Renormalization flows for 1D mixed states and a quantum Goursat lemma

Léo Le-Nestour, David Pérez-García, Alberto Ruiz-de-Alarcón

Preprint

arXiv:2607.08568

The Spencer cohomology and integrability of multisymplectic structures

Manuel de León, Rubén Izquierdo-López, Manuel Lainz

Preprint

arXiv:2607.05267

Poisson and Jacobi structures from 2-covariant tensors

Manuel de León, Xavier Gràcia, Rubén Izquierdo-López, Ángel Martínez-Muñoz, Xavier Rivas

Preprint

arXiv:2606.20030

Probing weak chaos in N = 4 super Yang-Mills and long-range spin chains

P. Caputa, B. Creed, R. N. Das, S. Demulder, T. McLoughlin

Preprint

arXiv:2606.18351

Stringy T-duality on the lattice and the twisted Villain model

C. Bacq, A. Caddeo, S. Demulder, J. Erdmenger

Preprint

arXiv:2605.19925

Optimal paths across potentials on scalar field space

S. Demulder, D. Lüst, C. Montella, T. Raml

Preprint

arXiv:2604.24843

Regularization of singular time-dependent Lagrangian systems

Manuel De León, Rubén Izquierdo-López, Luca Schiavone, Pablo Soto

Preprint

arXiv:2603.24308

Integrability breaking in semiclassical strings in Koopman-Krylov space

R. N. Das, S. Demulder

J. Phys. A: Math. Theor. 59 305401

arXiv:2602.23421 DOI

Non-invertible Nielsen circuits and 3d Ising gravity

S. Demulder

JHEP 05 (2026) 146

arXiv:2601.09534 DOI

Non-invertible circuit complexity from fusion operations

S. Demulder

Preprint

arXiv:2601.09535

2025

Haag Duality for 2D Quantum Spin Systems

Y. Ogata, D. Pérez-García and A. Ruiz-de-Alarcón

Preprint

arXiv:2509.23734

From variational principles to geometry

J. Gaset Rifà

Preprint

arXiv:2509.22171

Krylov exponents and power spectra for maximal quantum chaos: an EFT approach

S. Demulder, M. Knysh, A. Rolph

JHEP 2026, 59 (2026)

arXiv:2508.05444 DOI

A description of classical field equations using extensions of graded Poisson brackets

M. de León, R. Izquierdo-López

Preprint

arXiv:2507.04743

A survey on geometric frameworks for action-dependent classical field theories and their relationship

J. Gaset Rifà, X. Rivas, N. Román-Roy

Preprint

arXiv:2506.11646

Brackets in multicontact geometry and multisymplectization

M. de León, R. Izquierdo-López, X. Rivas

Mediterr. J. Math. 23, 81 (2026)

arXiv:2505.13224 DOI

Gap between quantum theory based on real and complex numbers is arbitrarily large

S. Sarkar, D. Trillo, M. O. Renou, R. Augusiak

Rep. Prog. Phys. 89 070503

arXiv:2503.09724 DOI

Diósi-Penrose model of classical gravity predicts gravitationally induced entanglement

D. Trillo, M. Navascués

Physical Review D 111, L121101

arXiv:2411.02287 DOI

Practical Introduction to Action-Dependent Field Theories

M. de León, J. Gaset Rifà, M. C. Muñoz-Lecanda, X. Rivas and N. Román-Roy

Fortschritte der Physik 73, 5, e70000

arXiv:2409.08340 DOI

Symplectic approach to global stability

V. Errasti Díez, J. Gaset Rifà and M. Lainz

Lect. Notes Comput. Sci. 16035 (2025), 320-327

arXiv:2504.16169 DOI

Parent Lindbladians for Matrix Product Density Operators

Y. Liu, A. Ruiz-de-Alarcón, G. Styliaris, X. Sun, D. Pérez-García, and J. I. Cirac

Phys. Rev. Research 8, 013210

arXiv:2501.10552 DOI

Foundations of ghost stability

V. Errasti Díez, J. Gaset Rifà, G. Staudt

Fortschritte der Physik 73, 4, 2400268

arXiv:2408.16832 DOI

Graded Poisson and graded Dirac structures

M. de León, R. Izquierdo-López

J. Math. Phys. 66 (2025), 022901

arXiv:2410.06034 DOI

2024

The Herglotz variational principle for dissipative field theories

J. Gaset Rifà, M. Lainz Valcázar, A. Mas, and X. Rivas

Geom. Mech. 1, no. 2, 153

arXiv:2211.17058 DOI

Conditional Independence of 1D Gibbs States with Applications to Efficient Learning

Á. M. Alhambra, Á. Capel, P. Gondolf, A. Ruiz-de-Alarcón, and S. O. Scalet

Ann. Henri Poincaré (2026)

arXiv:2402.18500 DOI

Constraint characterization and degree of freedom counting in Lagrangian field theory

V. Errasti Díez, M. Maier and J. A. Méndez-Zavaleta

Phys. Rev. D 109, no. 2

arXiv:2310.12218 DOI