On an interpretation of non-Riemannian gravitation

Teyssandier, Pierre and Tucker, Robin and Wang, Charles (1998) On an interpretation of non-Riemannian gravitation. Acta Physica Polonica B, 29 (4). pp. 987-994. ISSN 0587-4254

Abstract

Motivated by the invariance of actions under gauge symmetries the definitions of standard clocks in theories of gravitation are discussed. We argue that standard Einsteinian clocks can be defined in non-Riemannian theories of gravitation and that atomic clocks may be adopted to measure proper time in the presence of non-Riemannian gravitational fields. These ideas are illustrated in terms of a recently developed model of gravitation based on a non-Riemannian space-time geometry.