String theories with deformed energy-momentum relations, and a possible nontachyonic bosonic string
String theories with deformed energy-momentum relations, and a possible nontachyonic bosonic string
We consider a prescription for introducing deformed dispersion relations in the bosonic string action. We find that in a subset of such theories it remains true that the embedding coordinates propagate linearly on the world sheet. While both the string modes and the center of mass propagate with deformed dispersion …