Ezequiel Valero and colleagues at the University of Valencia demonstrate that many-body observables exhibit significant sensitivity to ultraviolet (UV) deformations originating from generalised-uncertainty-principle and modified-dispersion-relation theories, even at accessible energy scales. They constructed a deformed polaron-molecule Hamiltonian, carefully preserving the infrared sector, to quantify the impact of these deformations on both spectral and Ramsey observables and subsequently implemented the corresponding quantum dynamics utilising a quantum computing platform. The study identifies specific regimes proximate to the polaron-molecule crossover where even minute UV deformations are sharply amplified, potentially leading to measurable alterations in quasiparticle properties and spectral response, and reports experimental validation performed on the QRed superconducting quantum processor. These findings provide a defined pathway for investigating low-energy quantum-gravity phenomenology within a controlled many-body system and delineate the limits of the effective description employed. Ultraviolet Sensitivity Amplified via Polaron-Molecule Hamiltonian Manipulation A tenfold enhancement in the sensitivity of impurity many-body observables to ultraviolet deformations has been achieved by teams from CNS and Universidade Europeia, exceeding previous limitations imposed by the Planck scale, which typically necessitates energies on the order of 1019 GeV for direct observation of quantum gravity effects. This amplified sensitivity, realised through precise manipulation of a deformed polaron-molecule Hamiltonian, facilitates the exploration of quantum-gravity phenomenology at energies now within the realm of experimental feasibility. Previously, detecting such subtle effects demanded energies far exceeding current technological capabilities, rendering direct observation impractical. The polaron-molecule Hamiltonian describes a system where an impurity atom interacts with a surrounding medium, exhibiting characteristics of both a localized polaron and a delocalized molecule, providing a tunable platform for investigating many-body physics. The QRed superconducting quantum processor successfully validated these findings, establishing a novel pathway to investigate low-energy quantum gravity and rigorously define the boundaries of effective theoretical descriptions. Small ultraviolet deformations were amplified in regimes near the