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    New constraints on Lorentz invariance violation at high redshifts from multiwavelength GRB observations

    Mingyue Chen1,*, Jun Tian1,2,*, Yu Pan1,†, Tonghua Liu3, and Shuo Cao4,‡

    • *These authors contributed equally to this work.
    • †Contact author: panyu@cqupt.edu.cn
    • ‡Contact author: caoshuo@bnu.edu.cn

    Phys. Rev. D 113, 042004 – Published 17 February, 2026

    DOI: https://doi.org/10.1103/81h2-hltm

    Abstract

    In the gravity quantum theory, the quantization of spacetime may lead to the modification of the dispersion relation between the energy and the momentum and the Lorentz invariance violation (LIV). High energy and long-distance gamma-ray burst (GRB) observations in the Universe provide a unique opportunity to test the possibility of LIV. In this work, we use 88 time delays from GRBs (0.117<z<6.29), and provide a cosmological model-independent approach based on the luminosity distance data from 174 GRBs to test LIV. Combining the observation data from a multiband of GRBs provides us with an opportunity to mitigate the potential systematic errors arising from variations in the physical characteristics among diverse object populations, and to add a higher redshift dataset for testing the energy-dependent velocity caused by the corrected dispersion relationship of photons. These robust limits of the energy scale for the linear and quadratic LIV effects are EQG,1≥1.5×1015  GeV, and EQG,2≥8.5×109  GeV, respectively. It exhibits a significantly reduced value compared to the energy scale of Planck in both scenarios of linear and quadratic LIV.

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