Non-Commutativity, Teleology and GRB Time Delay
Miao Li, Yi Pang, Yi Wang
TL;DR
This paper introduces a model where space-time non-commutativity causes energy-dependent photon time delays, potentially explaining observed delays in high-energy photons from gamma-ray bursts.
Contribution
It presents a novel theoretical framework linking space-time non-commutativity to photon time delays, incorporating a noncommutative coupling between dilaton and photon.
Findings
High energy photons can be delayed or superluminal in the model
The model may explain observed gamma-ray burst time delays
Predicts energy-dependent photon behavior
Abstract
We propose a model in which an energy-dependent time delay of a photon originates from space-time non-commutativity, the time delay is due to a noncommutative coupling between dilaton and photon. We predict that in our model, high energy photons with different momenta can either be delayed or superluminal, this may be related to a possible time delay reported by the Fermi LAT and Fermi GBM Collaborations.
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