Geometry of Bigravity

Universe

Vladimir Soloviev¹ 

[1] NRC “Kurchatov Institute” – IHEP, Protvino 142281, Moscow Oblast, Russia;

关键词: non-euclidean geometry;    general relativity;    cosmology;    bimetric gravity;   

DOI  :  10.3390/universe4020019

来源: DOAJ

【 摘 要 】

The non-Euclidean geometry created by Bolyai, Lobachevsky and Gauss has led to a new physical theory—general relativity. In due turn, a correct mathematical treatment of the cosmological problem in general relativity has led Friedmann to a discovery of dynamical equations for the universe. And now, after almost a century of theoretical and experimental research, cosmology has a status of the most rapidly developing fundamental science. New challenges here are problems of dark energy and dark matter. As a result, a lot of modifications of general relativity appear recently. The bigravity is one of them, constructed with a couple of interacting space–time metrics accompanied by some coupling to matter. We discuss here this approach and different kinds of the coupling.

【 授权许可】

Unknown