Observers and Measurements in Noncommutative Spacetimes
Vyacheslav S. Rychkov
Abstract
We propose a "Copenhagen interpretation" for spacetime noncommutativity. The goal is to be able to predict results of simple experiments involving signal propagation directly from commutation relations. A model predicting an energy dependence of the speed of photons of the order E/EPlanck is discussed in detail. Such effects can be detectable by the GLAST telescope, to be launched in 2006.
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