2002/01/01 by GIOVANNI AMELINO-CAMELIA · 15 citations
Physics and Astronomy · #Noncommutative and Quantum Gravity Theories #Quantum Electrodynamics and Casimir Effect #Relativity and Gravitational Theory
paper · doi:10.1142/s0218271802001330
I show that it is possible to formulate the Relativity postulates in a way that does not lead to inconsistencies in the case of spacetimes whose short-distance structure is governed by an observer-independent length scale. The consistency of these postulates proves incorrect the expectation that modifications of the rules of kinematics involving the Planck length would necessarily require the introduction of a preferred class of inertial observers. In particular, it is possible for every inertial observer to agree on physical laws supporting deformed dispersion relations of the type E 2 -c 2 p 2 -c 4 m 2 + f(E, p, m; L p ) =0, at least for certain types of f.