Work

Universality of entanglement in gluon dynamics

Year: 2026

Type: article

Abstract: Entanglement of fundamental degrees of freedom in particle physics is generated ab initio in scattering processes. We find that in the case of a pure SU(N) S U ( N ) gauge theory, two gluons in a product state can become maximally entangled in their polarizations as the result of three- and four-gluon vertex interactions. Remarkably, the amount of entanglement among gluon polarizations is independent of the color degree of freedom. We also find that a small deviation of the relative weight between three- and four-gluon vertices would prevent the generation of maximal entanglement. This can be seen as a small piece of a possible it from qubit principle underlying fundamental interactions.

Source: SciPost Physics

DOI: 10.21468/scipostphys.20.2.063

Authors: Claudia Nuñez Garrido, Alba Cervera-Lierta, José Ignacio Latorre

Institutions: Institut Cartogràfic i Geològic de Catalunya, Barcelona Supercomputing Center, National University of Singapore

Language: English

Topic: Quantum Chromodynamics and Particle Interactions

Subfield: Nuclear and High Energy Physics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: diamond

Funders: Agencia Estatal de Investigación, European Social Fund

Awards: G303715510, G3480869486, G7084143925