Physics

Scientists probe Einstein’s theories using deep-sea Mediterranean observatory

How the science connects

General relativityNeutrino detectionLorentz invariance

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Researchers from the KM3NeT collaboration used a neutrino telescope at the bottom of the Mediterranean Sea to test Lorentz invariance, a fundamental principle of Einstein's relativity that states physical laws are the same everywhere in the universe. They analyzed 5,828 atmospheric neutrino events detected by the KM3NeT/ORCA detector to search for potential violations of this principle, which some theories attempting to unify gravity and quantum physics predict might occur.


This research tests one of the foundational assumptions of modern physics and could reveal whether our current understanding of spacetime needs modification. Finding violations of Lorentz invariance would have profound implications for theoretical physics and our understanding of how gravity and quantum mechanics might be reconciled.


Are the laws of physics truly the same everywhere in the universe? This fundamental principle, known as Lorentz invariance, lies at the heart of Einstein’s theory of relativity. Yet some theories that seek to reconcile gravity with quantum physics suggest that it might not always hold. To investigate this possibility, researchers from the international KM3NeT collaboration analyzed 5,828 atmospheric neutrino candidate events detected by KM3NeT/ORCA, a neutrino telescope located deep in the Mediterranean Sea.

Source: Testing Einstein's laws from the bottom of the Mediterranean Sea