Constraining Lorentz Invariance Violation with Gamma-Ray Bursts
Physics#Astrophysics🔬 Research|Analyzed: Jan 3, 2026 19:29•
Published: Dec 28, 2025 10:54
•1 min read
•ArXivAnalysis
This paper uses a hierarchical Bayesian inference approach to analyze spectral-lag measurements from 32 gamma-ray bursts (GRBs) to search for violations of Lorentz invariance (LIV). It addresses the limitations of previous studies by combining multiple GRB observations and accounting for systematic uncertainties in spectral-lag modeling. The study provides robust constraints on the quantum gravity energy scale and concludes that there is no significant evidence for LIV based on current GRB observations. The hierarchical approach offers a statistically rigorous framework for future LIV searches.
Key Takeaways
- •Combines observations from multiple GRBs to improve constraints on Lorentz Invariance Violation (LIV).
- •Employs a hierarchical Bayesian inference approach for a statistically robust analysis.
- •Accounts for systematic uncertainties in spectral-lag modeling.
- •Finds no significant evidence for LIV based on current GRB observations.
- •Provides a framework for future LIV searches using multi-messenger observations.
Reference / Citation
View Original"The study derives robust limits of $E_{ m QG,1} \ge 4.37 imes 10^{16}$~GeV for linear LIV and $E_{ m QG,2} \ge 3.02 imes 10^{8}$~GeV for quadratic LIV."