Interpreting doubly special relativity as a modified theory of measurement

Details Interpreting doubly special relativity as a modified theory of measurement Interpreting doubly special relativity as a modified theory of measurement

2004-10-21

arxiv.org/abs/gr-qc/0410113v1

Phys.Rev. D71 (2005) 045001

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

18 pages, plain LaTeX2E

Scientific paper

10.1103/PhysRevD.71.045001

In this article we develop a physical interpretation for the deformed (doubly) special relativity theories (DSRs), based on a modification of the theory of measurement in special relativity. We suggest that it is useful to regard the DSRs as reflecting the manner in which quantum gravity effects induce Planck-suppressed distortions in the measurement of the "true" energy and momentum. This interpretation provides a framework for the DSRs that is manifestly consistent, non-trivial, and in principle falsifiable. However, it does so at the cost of demoting such theories from the level of "fundamental" physics to the level of phenomenological models -- models that should in principle be derivable from whatever theory of quantum gravity one ultimately chooses to adopt.

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