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Universality of entanglement in gluon dynamics, by Claudia Nuñez Garrido, Alba Cervera-Lierta, José Ignacio Latorre

SciPost Quantum
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⚡ Quantum Brief
Researchers from Spain and Singapore discovered that gluons—fundamental particles in quantum chromodynamics—can achieve maximal polarization entanglement through three- and four-gluon interactions in pure SU(N) gauge theories. The study reveals entanglement generation is universal across gluon polarizations, surprisingly independent of their color charge, suggesting a deeper quantum structure in strong-force interactions. A precise balance between three- and four-gluon vertex contributions is critical; even minor deviations disrupt maximal entanglement, hinting at fine-tuned quantum dynamics in particle collisions. This work supports the "it from qubit" hypothesis, proposing that spacetime and fundamental forces may emerge from quantum information principles like entanglement. Published in February 2026, the findings bridge high-energy physics and quantum information, offering potential insights for quantum simulations of gauge theories.
Universality of entanglement in gluon dynamics, by Claudia Nuñez Garrido, Alba Cervera-Lierta, José Ignacio Latorre

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SciPost Physics Home Authoring Refereeing Submit a manuscript About Universality of entanglement in gluon dynamics Claudia Nuñez Garrido, Alba Cervera-Lierta, José Ignacio Latorre SciPost Phys. 20, 063 (2026) · published 27 February 2026 doi: 10.21468/SciPostPhys.20.2.063 pdf BiBTeX RIS Submissions/Reports 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 $SU(N)$ 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. × TY - JOURPB - SciPost FoundationDO - 10.21468/SciPostPhys.20.2.063TI - Universality of entanglement in gluon dynamicsPY - 2026/02/27UR - https://scipost.org/SciPostPhys.20.2.063JF - SciPost PhysicsJA - SciPost Phys.VL - 20IS - 2SP - 063A1 - Nuñez Garrido, ClaudiaAU - Cervera-Lierta, AlbaAU - Latorre, José IgnacioAB - 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 $SU(N)$ 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.ER - × @Article{10.21468/SciPostPhys.20.2.063, title={{Universality of entanglement in gluon dynamics}}, author={Claudia Nuñez Garrido and Alba Cervera-Lierta and José Ignacio Latorre}, journal={SciPost Phys.}, volume={20}, pages={063}, year={2026}, publisher={SciPost}, doi={10.21468/SciPostPhys.20.2.063}, url={https://scipost.org/10.21468/SciPostPhys.20.2.063},} Ontology / Topics See full Ontology or Topics database. Entanglement Gauge symmetry Gluons Quantum information Scattering amplitudes Yang Mills Theory Authors / Affiliations: mappings to Contributors and Organizations See all Organizations. 1 Claudia Nuñez Garrido, 2 Alba Cervera-Lierta, 3 José Ignacio Latorre 1 Institut Cartogràfic i Geològic de Catalunya / Institut Cartogràfic i Geològic de Catalunya [ICGC] 2 Centre Nacional de Supercomputació / Barcelona Supercomputing Center [BSC] 3 National University of Singapore [NUS] Funders for the research work leading to this publication Agencia Estatal de Investigación European Social Fund

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