The twin paradox in the presence of gravity
arXiv:1409.1818 · doi:10.1142/S0217732314501491
Abstract
Conventional wisdom, based on kinematic (flat-space) intuition, tell us that a static twin is aging faster than his traveling twin brother. However, such a situation could be exactly inverted if the two twins are embedded in an external gravitational field, and if the (dynamical) distortion of the space-time geometry, due to gravity, is strong enough to compensate the kinematic effect of the relative twin motion.
5 pages, 2 figures. Published in Mod. Phys. Lett. A 29, 1450149 (2014)