The quantization of spacetime could be revealed indirectly through its imprint on the propagation of particles. An analysis combining data from the IceCube Neutrino Observatory and the Fermi Gamma-ray Space Telescope shows preliminary statistical evidence of such a quantum-spacetime effect.
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References
Amelino-Camelia, G. Quantum theory’s last challenge. Nature 408, 661–664 (2000). A non-technical review article on quantum spacetime and the quantum-gravity problem.
Addazzi, A. et al. Quantum gravity phenomenology at the dawn of the multimessenger era – A review. Prog. Part. Nucl. Phys. 125, 103948 (2021). A review focusing mostly on tests of the implications of some quantum-spacetime models for the speeds of particles.
Gaisser, T. & Halzen, F. IceCube. Annu. Rev. Nucl. Part. Sci. 64, 101–123 (2014). A review article covering the design, operation and physics potential of the IceCube Neutrino Observatory.
Jacob, U. & Piran, T. Neutrinos from gamma-ray bursts as a tool to explore quantum-gravity-induced Lorentz violation. Nat. Phys. 3, 87–90 (2007). An article on the use of neutrinos from gamma-ray bursts in quantum-spacetime research.
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This is a summary of: Amelino-Camelia, G. et al. Could quantum gravity slow down neutrinos? Nat. Astron. https://doi.org/10.1038/s41550-023-01993-z (2023).
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Neutrinos could hold the key to proving the quantization of spacetime. Nat Astron 7, 898–899 (2023). https://doi.org/10.1038/s41550-023-01994-y
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DOI: https://doi.org/10.1038/s41550-023-01994-y
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