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Abstract: To serve as a dispersion relation, a cotangent bundle function must satisfythree simple algebraic properties. These conditions are derived from theinescapable physical requirements to have predictive matter field dynamics andan observer-independent notion of positive energy. Possible modifications ofthe standard relativistic dispersion relation are thereby severely restricted.For instance, the dispersion relations associated with popular deformations ofMaxwell theory by Gambini-Pullin or Myers-Pospelov are not admissible.



Autor: Dennis Raetzel, Sergio Rivera, Frederic P. Schuller

Fuente: https://arxiv.org/







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