Journal
JETP LETTERS
Volume 78, Issue 7, Pages 431-435Publisher
MAIK NAUKA/INTERPERIODICA/SPRINGER
DOI: 10.1134/1.1633311
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There are two major alternatives for violating the (usual) Lorentz invariance at large (Planckian) energies or momenta-either not all inertial frames (in the Planck regime) are equivalent (e.g., there is an effectively preferred frame) or the transformations from one frame to another are (nonlinearly) deformed (doubly special relativity). We demonstrate that the natural (and reasonable) assumption of an energy-dependent speed of light in the latter method goes along with violations of locality/separability (and even translational invariance) on macroscopic scales. (C) 2003 MAIK Nauka / Interperiodica.
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