Metric fluctuations, solution to the superluminal neutrino problem?

TL;DR

The paper proposes that short-distance fluctuations in spacetime metric can reconcile superluminal neutrino observations with relativistic causality.

Contribution

It introduces a model where metric fluctuations explain superluminal neutrino velocities without violating relativity.

Findings

Neutrino velocities can exceed light speed due to metric fluctuations.

Relativistic causality remains intact under the proposed model.

Short-distance metric fluctuations are compatible with current observations.

Abstract

It is shown that the measured neutrino velocity, apparently violating relativity theory, is compatible with (general) relativistic causality provided that we assume that the metric of spacetime fluctuates at short distances.