Quantum-Gravity Phenomenology and the DSR Ether Theories

Details Quantum-Gravity Phenomenology and the DSR Ether Theories Quantum-Gravity Phenomenology and the DSR Ether Theories

2010-09-20

arxiv.org/abs/1009.3717v1

Physics

General Physics

7 pages, 3 figures, 5 numbered equations, and 17 references

Scientific paper

Guided primarily by versions of a theoretical framework called Doubly Special Relativity, or DSR, that are supposed to entail speeds of light that vary with energy while preserving the relativity of inertial frames, quantum-gravity phenomenologists have recently been seeking clues to quantum gravity, in hoped-for differing times of arrival, for light of differing energies, from cosmologically distant sources. However, it has long been known that signals, of arbitrarily high speed in opposing directions, could be used to observe the translational state of (absolute) rest, as could signals of a fixed speed different from c. Consequently, the above versions of DSR are nonviable.

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