Operational indistinguishabilty of doubly special relativities from special relativity

Abstract

We argue that existing doubly special relativities may not be operationally distinguishable from the special relativity. In the process we point out that some of the phenomenologically motivated modifications of dispersion relations, and arrived conclusions, must be reconsidered. Finally, we reflect on the possible conceptual issues that arise in quest for a theory of spacetime with two invariant scales.

arXiv comment8 pages [This paper is no longer being pursued for publication. Its essential, and updated, content is now available in Sec. 2 of D. V. Ahluwalia-Khalilova, A freely falling frame at the interface of gravitational and quantum realms, Class. Quant. Grav. 22 (2005) 1433-1450.]

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• A freely falling frame at the interface of gravitational and quantum realms
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