Quantum-gravity-motivated Lorentz-symmetry tests with laser interferometers

Details Quantum-gravity-motivated Lorentz-symmetry tests with laser interferometers Quantum-gravity-motivated Lorentz-symmetry tests with laser interferometers

2003-06-04

arxiv.org/abs/gr-qc/0306019v1

Class.Quant.Grav. 21 (2004) 899-916

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

17 pages, 3 figures

Scientific paper

10.1088/0264-9381/21/4/010

We consider the implications for laser interferometry of the quantum-gravity-motivated modifications in the laws of particle propagation, which are presently being considered in attempts to explain puzzling observations of ultra-high-energy cosmic rays. We show that there are interferometric setups in which the Planck-scale effect on propagation leads to a characteristic signature. A naive estimate is encouraging with respect to the possibility of achieving Planck-scale sensitivity, but we also point out some severe technological challenges which would have to be overcome in order to achieve this sensitivity.

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