Twin Paradox in de Sitter Spacetime
General Relativity and Quantum Cosmology
2011-07-28 v1
Abstract
The "twin paradox" of special relativity offers the possibility to make interstellar flights within a lifetime. For very long journeys with velocities close to the speed of light, however, we have to take into account the expansion of the universe. Inspired by the work of Rindler on hyperbolic motion in curved spacetime, we study the worldline of a uniformly accelerated observer in de Sitter spacetime and the communication between the traveling observer and an observer at rest.
Cite
@article{arxiv.1009.3427,
title = {Twin Paradox in de Sitter Spacetime},
author = {Sebastian Boblest and Thomas Müller and Günter Wunner},
journal= {arXiv preprint arXiv:1009.3427},
year = {2011}
}
Comments
15 pages, 19 figures, 5 tables