The kinematics of particles moving in rainbow spacetime

Details The kinematics of particles moving in rainbow spacetime The kinematics of particles moving in rainbow spacetime

2006-09-28

arxiv.org/abs/gr-qc/0609130v1

Mod.Phys.Lett.A22:2931-2938,2007

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

5 pages

Scientific paper

10.1142/S0217732307022980

The kinematics of particles moving in rainbow spacetime is studied in this paper. In particular the geodesics of a massive particle in rainbow flat spacetime is obtained when the semi-classical effect of its own energy on the background is taken into account. We show that in general the trajectory of a freely falling particle remains unchanged which is still a straight line as in the flat spacetime. The implication to the Unruh effect in rainbow flat spacetime is also discussed.

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